Document:

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                                                               EXHIBIT 10.34

                              FIRST LEASE AMENDMENT

     This instrument dated as of the 1st day of March, 2001, by and between 200
SOUTH WACKER DRIVE, L.L.C., an Illinois limited liability company ("Landlord")
and ORBITZ, LLC, a Delaware limited liability company ("Tenant").

                                R E C I T A L S:

     A.     By instrument dated as of October 1, 2000 (the "Lease"), Landlord
demised and leased to Tenant certain premises comprising the entirety of the
eighteenth (l8th) and nineteenth (19th) floors and containing approximately
44,766 rentable square feet in the aggregate (the "Premises") in the Building
known as 200 South Wacker Drive (the "Building") in Chicago, Illinois, on the
terms and conditions set forth therein.

     B.     In lieu of Landlord performing the Work described in the Work Letter
attached to the Lease as Exhibit C, Tenant has elected to retain its own general
contractor to perform the Work and accordingly, Landlord and Tenant desire to
make certain modifications to the Lease.

     C.     Landlord and Tenant desire to amend the Lease as hereinafter set
forth.

     NOW, THEREFORE, in consideration of the mutual covenants and agreements
herein contained and for other good and valuable consideration, receipt whereof
is hereby acknowledged, Landlord and Tenant covenant and agree as follows:

     1.     Effective as of the date hereof, Section 1 (Term) of the Lease is
revised by deleting it in its entirety and by substituting in lieu thereof the
following:

            "The term of this Lease (hereinafter referred to as the
     "Term") shall commence on the 1st day of March, 2001 (hereinafter
     referred to as the "Commencement Date") and shall end on the 29th
     day of February, 2008 (hereinafter referred to as the
     "Termination Date"), unless sooner terminated (or extended) as
     provided herein."

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     2.     Effective as of the date hereof, Section 2.B (Partial Abatement of
Base Rent and Additional Rent) of the Lease is revised by deleting it in its
entirety and by substituting in lieu thereof the following:

            "If Tenant is not in "default" hereunder (as described in
     Section 22 hereof) on the date any such installment is due, Base
     Rent and Additional Rent due hereunder commencing on the
     Commencement Date with respect to the portion of the Premises
     comprising the entirety of the nineteenth (19th) floor shall be
     abated in full through the period ending May 31, 2001."

     3.     Effective as of the date hereof, Section 5 (Possession) of the Lease
is revised as follows

            (a)   By deleting therefrom Paragraph A in its entirety and by
     substituting in lieu thereof the following:

                  "A. Tenant agrees to accept the Premises in its "as
            is" condition as of the date of this Lease, subject,
            however, to Landlord's agreement to demolish the existing
            improvements on the nineteenth (19th) floor. Possession of
            the Premises shall be tendered to Tenant by Landlord upon
            full execution and delivery of this Lease for purposes of
            permitting Tenant to commence the performance of the Work
            therein as described in the Work Letter attached hereto as
            Exhibit C and made a part hereof. In no event shall the
            Commencement Date or the Termination Date be deferred on
            account of Tenant's failure to substantially complete the
            Work by the Commencement Date."

            (b)   By deleting from Paragraph B thereof the first full
     grammatical sentence in its entirety.

     4.     Effective as of the date hereof, Section 19 (Obligations to
Mortgagees) of the Lease is revised by deleting from Paragraph C thereof
(Non-Disturbance Agreement) the first full grammatical sentence and by
substituting in lieu thereof the following:

            "Promptly following the Commencement Date, Landlord shall
     provide Tenant with a Non-Disturbance Agreement from Landlord's
     current mortgage lender substantially in the form attached hereto
     as Exhibit I, and the obligations of

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     Tenant under this Paragraph 19 are contingent upon Tenant's receipt of such
     Non-Disturbance Agreement."

     5.     Effective as of the date hereof, Exhibit C (the Work Letter) to the
Lease is revised such that all references therein to the performance of the Work
by the Landlord or by a general contractor retained or controlled by Landlord
are deleted; it is understood and agreed that Tenant shall retain Turner
Construction (Special Projects) as the general contractor to perform the Work,
that Tenant shall sign the construction contract with the general contractor and
that the general contractor shall perform all aspects of the Work under the
direction and control of Tenant, subject to Landlord's approval (which approval
shall not unreasonably be withheld) of the Final Plans therefor and any material
changes to the Final Plans (so long as such changes do not impact the systems or
structure of the Building), and further subject to Landlord's supervision of
such Work. Landlord acknowledges that the Final Plans with respect to the Work
on the eighteenth (18) floor have been approved by Landlord as of the date of
this Amendment (except with respect to the balancing of the HVAC system), and
Landlord further agrees that with respect to the Final Plans for the Work on the
nineteenth (19th) floor, Landlord shall respond to Tenant's requests for
approval in a timely manner. Exhibit C to the Lease is further revised by
deleting Paragraph 4 in its entirety. Exhibit C to the Lease is further revised
by deleting Paragraph 3 in its entirety and by substituting the following in
lieu thereof:

            "3.   PAYMENT OF COSTS OF THE WORK.

            (a)   Subject to the provisions of Paragraph 3(b) below and
     Landlord's obligation to demolish at Landlord's sole cost the
     improvements currently located on the eighteenth (18th) and
     nineteenth (19th) floors as described in Section 30 of the Lease,
     the Work shall be installed at Tenant's sole cost and expense.
     The cost of the Work shall include, and Tenant agrees to pay
     Landlord for, the following costs ("Landlord's Costs"): (i) the
     reasonable and actual cost of all work, if any, performed by
     Landlord on behalf of Tenant and for all materials and labor
     furnished on Tenant's behalf (which work Landlord shall be
     authorized to perform

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     only upon written request of Tenant); (ii) the reasonable and
     actual cost of any services provided to Tenant or its contractors
     including but not limited to the cost for rubbish removal,
     hoisting, and utilities to the extent not included in any other
     fees paid by Tenant; and (iii) a supervision fee equal to
     Landlord's direct out-of-pocket costs not to exceed $0.25 per
     rentable square foot of the Premises (which shall reimburse
     Landlord for the costs of providing employees of Landlord for
     supervising such work and reviewing the Final Plans and costs for
     rubbish removal and cleanup prior to substantial completion of
     the Work). Landlord may render bills to Tenant monthly for
     Landlord's Costs (provided that the supervision fee shall be
     billed proportionately based on the costs of the Work performed
     during the period in question). All bills shall be paid from the
     construction escrow as set forth in subparagraphs (b) and (c)
     below.

            (b)   Pursuant to Section 30 of the Lease, Landlord has
     agreed to provide Tenant with an allowance of $1,342,980.00
     ("Tenant Improvement Allowance") to be used toward payment of
     certain costs incurred by Tenant in connection with the Work.
     Funds may be drawn against the Tenant Improvement Allowance at
     any time and from time to time commencing upon full execution of
     the Lease, but not after the date which is twelve (12) months
     following the Commencement Date (subject, however, to the
     provisions of Section 30.C of the Lease providing for the credit
     of a portion of any unused Tenant Improvement Allowance to the
     payment of Base Rent), subject to the following:

            (i)   Tenant may not make more than one draw in any
     calendar month;

            (ii)  The minimum amount which may be drawn at any one
     time (except in case of the final draw) is One Hundred Thousand
     Dollars ($100,000);

            (iii) Except for the final draw, the maximum amount of any
     draw shall not exceed an amount which bears the same ratio to the
     total Tenant Improvement Allowance as the cost of the Work paid
     by Tenant and covered by the lien waivers submitted by Tenant in
     connection with the draw request bears to the total cost of the
     Work;

            (iv)  With each draw request, Tenant shall submit to
     Landlord the following documents:

            (A)   A true and correct copy of the application for
     payment by Tenant's Contractors for the Work completed to date,
     including contractor's affidavits and sworn statements evidencing
     the cost of the Work performed to date (or in the case of
     subcontractors and materialmen, affidavits and sworn statements
     for the last preceding draw request);

            (B)   Partial or final lien waivers with respect to the
     Work performed to date (or in the case of subcontractors and
     materialmen and except for the final

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     disbursement of the Tenant Improvement Allowance, partial lien
     waivers for the last preceding draw request);

            (C)   Tenant's certification to Landlord that the amounts
     set forth in all contractor's sworn statements are owed to
     Tenant's Contractors for the Work performed to date;

            (D)   The total cost of the Work based on the Final Plans,
     as such cost may change from time to time;

            (E)   With the final draw request, Tenant shall submit to
     Landlord a certificate from Tenant's Architect stating that the
     Work has been completed in accordance with the Final Plans and
     applicable zoning, building, environmental and other laws.

            (v)   Landlord will disburse the portion of the Tenant
     Improvement Allowance allocable to each draw request to Tenant or
     Tenant's Contractors (at Landlord's option) within thirty (30)
     days after Tenant has submitted the required information for such
     draw and has otherwise complied with the requirements hereof.

            (c)   Prior to commencement of any construction by Tenant
     or payment of any of Tenant's Contractors, Landlord shall
     establish a construction escrow in the form attached hereto as
     Exhibit A providing for payment of Tenant's Contractors as the
     Work progresses upon satisfactory review of lien waivers and
     sworn statements from Tenant's Contractors and if requested by
     Landlord, Landlord's title insurance company's willingness to
     issue title insurance over mechanic's liens relating to the Work
     to the date of each draw. Landlord and Tenant shall each fund
     their respective shares of the construction escrow as the Work
     progresses and within ten (10) days of processing each draw
     request. Tenant shall pay for the Work out of the construction
     escrow. The provisions of Section 9 of the Lease shall apply to
     Tenant's performance of and payment for the Work. The cost of the
     construction escrow shall be borne by Tenant, except that Tenant
     shall not be required to pay for any title insurance costs in
     connection therewith, if required by Landlord, other than any
     title indemnities which the title company may require in
     connection with possible mechanics' lien claims."

     6.     Landlord and Tenant each represents and warrants to the other that
neither it nor any of its officers or agents nor anyone acting on its behalf has
dealt with any real estate broker other than The John Buck Company in the
negotiation or making of this First Lease Amendment, and Landlord and Tenant
each agrees to indemnify and hold harmless the other from the claim or

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claims of any other broker or brokers claiming to have caused such party to
enter into this First Lease Amendment.

     7.     Except as expressly modified and amended hereby, all of the terms,
covenants and conditions of the Lease are hereby ratified and confirmed.

     IN WITNESS WHEREOF, Landlord and Tenant have executed this instrument as of
the day and year first above written.

                                        LANDLORD:

                                        200 SOUTH WACKER DRIVE, L.L.C.

                                        By:  The Equitable Life Assurance
                                             Society of the United States, a
                                             New York corporation, solely on
                                             behalf and for the benefit of its
                                             Separate Account 8, known as the
                                             "Prime Property Fund"

                                             By: /s/ Jeffrey Perpich
                                                 -------------------------------
                                             Name: Jeffrey Perpich
                                             Its:  Investment Officer

                                        TENANT:

                                        ORBITZ, LLC,
ATTEST:                                 a Delaware limited liability company

     /s/ Jane E. Denman                      /s/ Jeffrey G. Katz

By:  JANE E. DENMAN                     By:  JEFFREY G. KATZ
     -------------------------               -----------------------------------
Its: VICE PRESIDENT, H.R.               Its: PRESIDENT & CEO
     -------------------------               -----------------------------------

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                                    EXHIBIT A

                           FORM OF CONSTRUCTION ESCROW

                                       A-1
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                      NEAR NORTH NATIONAL TITLE CORPORATION
                    A MEMBER OF THE NEAR NORTH NATIONAL GROUP
                         ------------------------------

                    OWNER'S AND TENANT'S CONSTRUCTION ESCROW

DATE        MARCH 12, 2001

CONSTRUCTION ESCROW NUMBER    C070l0008

     NEAR NORTH NATIONAL TITLE CORPORATION

200 S. WACKER DRIVE LLC (hereinafter described as "Owner) will deposit
approximately $       and ORBITZ, LLC (hereinafter described as "Tenant") will
deposit $      and cause to be deposited General Contractor's Sworn Statement
together with partial or final waivers of lien from contractors,
sub-contractors, and suppliers in connection with construction work in process
at,

200 South Wacker Drive Chicago, Illinois Suite or Floor Number 1800/1900
ADDRESS                            CITY                STATE

Tenant Improvements
TYPE OF IMPROVEMENT

The general contractor is Turner Construction Company

THE ARCHITECT IS GENSLER ARCHITECT.

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     WHEN YOU RECEIVE:

1.   A sworn Tenant's statement and approval to make payment
2.   Landlord's approval to make payment which may be incorporated on
     the sworn Tenant's statement.
3.   Certification from the architect that the labor and material for
     which payment is requested has been property performed or is in
     place on the premises in question.
4.   Sufficient funds (if not previously deposited)
5.   Personal undertaking from the general contractor for submission
     of waivers from the subcontractors on a delayed basis. (First
     draw only)

YOU ARE AUTHORIZED TO PROCEED AS FOLLOWS:

That payment should be directly made to the General Contractor and
although Near North National Title corporation shall have no liability
hereunder regarding lien rights which may be asserted by any
sub-contractor or supplier, it shall examine lien waivers from
subcontractors submitted by General Contractor in order to
substantiate payment to the General Contractor.

     You are hereby directed to examine the general contractor's sworn
statement, together with supporting affidavits and waivers of lien of
subcontractors and materialmen in accordance with the following procedure:

     1.     At the time of the initial draw; the general contractor will deposit
or cause to be deposited with you the general contractor's sworn statement and
his own waiver in the amount of the draw.

     2.     At the time of each subsequent disbursement, the general contractor
will deposit or cause to be deposited with you the general contractor's sworn
statement and his own waiver of lien for the current draw and all supporting
documentation such as affidavits and waivers of lien from subcontractors and
materialmen for the previous draw.

     3.     At the time of the final disbursement the general contractor will
deposit or cause to be deposited his general contractor's sworn statement and
all remaining affidavits and waivers of lien from subcontractors and materialmen
for the previous draw. In addition, at the time of the final disbursement, all
of the final supporting documentation should be deposited with you.

PRIOR TO EACH AND EVERY DISBURSEMENT YOU SHALL PERFORM A COMPUTER
CHECK FOR MECHANIC LIEN CLAIMS COVERING THE MOST CURRENT DATE
POSSIBLE. IN THE EVENT A MECHANIC'S LIEN CLAIM APPEARS RELATING TO THE
SPACE REFERENCED IN THIS ESCROW NO DISBURSEMENT WILL BE MADE WITHOUT
THE TENANT'S AND OWNER'S APPROVAL TO PROCEED WITH THE CURRENT DRAW
REQUEST.

     THE PERMANENT TAX NUMBERS ARE 17-16-214-002-0000

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     It is understood that your undertakings, and any liability arising
therefrom regarding the release of lien rights shall extend only to the Owner
and Tenant and shall be limited to those persons to whom you are making payments
and only for those amounts being paid. Any lien rights associated with work
previously completed, or completed by persons not receiving payments from you,
are specifically excluded.

     It is further understood that you make no representation that a title
insurance policy insuring over mechanics' lien claims will necessarily issue
without additional requirements being met.

     It is further understood that no responsibility is assumed by you
concerning the sufficiency of funds deposited herein to complete the
contemplated construction satisfactorily.

     If conflicting demands are made upon Escrowee or legal action is taken in
connection with the Escrow, Escrowee may withhold and stop all further
proceedings without liability therefor, or Escrowee may file suit in
interpleader or for declaratory relief. If Escrowee is required to respond to
any legal summons or proceedings, or if any action of interpleader or
declaratory relief is brought by Escrowee, or if conflicting demands or notice
by parties to this Escrow or by any other party or parties are served upon
Escrowee, the undersigned jointly and severally agree to pay reasonable escrow
fees and all costs, expenses, and reasonable attorney's fee expended or incurred
by Escrowee as a result of any of the above described events. The undersigned
further agree to save Escrowee harmless as escrow holder under the Escrow from
all losses and expenses, including reasonable attorney's fee and court cost
incurred by reason of any claim, demand, or action filed with respect to the
Escrow. The undersigned jointly and severally agree to pay fees of Escrowee and
reimburse Escrowee for al1 expenses incurred in connection herewith and direct
that all sums due to Escrowee pursuant hereto be deducted from the sums held in
the Escrow prior to disbursement of said sums, to the extent said sums are
sufficient to pay all sums due Escrowee. The undersigned hereby grant Escrowee a
lien against the deposits held in the Escrow to secure all sums due Escrowee.

     Deposits made pursuant to these instructions may be invested on behalf of
any party or parties hereto: Provided, that any direction to Escrowee for such
investment shall be expressed in writing and contain the consent of all other
parties to this escrow, and also provided that you are in receipt of the
taxpayer's identification number and investment forms as required. Escrowee
will, upon request, furnish information concerning its procedures and fee
schedules for investment.

     Except as to deposits of funds for which Escrowee has received express
written direction concerning investment or other handling, the parties hereto
agree that the Escrowee shall be under no duty to invest or reinvest any
deposits at any time held by it hereunder; and, further, that Escrowee may
commingle such deposits with other deposits or with its own funds in the manner
provided for the administration of funds under Section 2-8 of the Illinois
Corporate Fiduciary Act, 205 ILCS 620/2-8 (1992) and may use any part or all of
such funds for its own benefit without obligation to any party for interest or
earnings

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derived thereby, if any. Provided, however, nothing herein shall diminish
Escrowee's obligation to apply the full amount of the deposits in accordance
with the terms of this Agreement.

     In the event the Escrowee is requested to invest deposits hereunder, Near
North National Title Corporation is not to be held responsible for any loss of
principal or interest which may be incurred as result of making the investments
of redeeming said investment for the purpose of this escrow. Your charges
hereunder are to be billed to owner. Escrow fees are payable when billed.

     OWNER
           ----------------------------------------
     200 SOUTH WACKER DRIVE LLC

     Print Name/Tit1e
                      ------------------------------

     Address
             ---------------------------------------

     Phone #
             -----------------------

     TENANT /s/ Jeffrey G. Katz
            ---------------------------------------
     ORBITZ LLC

     Print Name/Title JEFFREY G. KATZ, PRESIDENT & CEO

     Address 200 S. WACKER DR. STE 1900, CHICAGO, IL

     Phone # 312-894-5000

     GENERAL CONTRACTOR
                        -----------------------------
     TURNER CONSTRUCTION

     Print Name/Title
                      -------------------------------
     Address
             ----------------------------------------
     Phone #
             -----------------------

     ACCEPTED: NEAR NORTH NATIONAL TITLE CORPORATION

Print Name/Title
                 ------------------------------------

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                      NEAR NORTH NATIONAL TITLE CORPORATION

                    A MEMBER OF THE NEAR NORTH NATIONAL GROUP

                              PERSONAL UNDERTAKING

                                 (AFTER THE ACT)

          WHEREAS, Near North National Title Corporation, as agent for the Title
     Insurance Company, hereinafter collectively referred to as "The Company,"
     is about to issue or may issue in the future its title insurance policy or
     policies or commitments or date down endorsements therefor, all hereinafter
     referred to as "The Title Insurance Policy, in respect to the land therein
     described, and commonly known as 200 South Wacker for the space or floors
     occupied by Orbitz LLC for tenant improvement work.

          AND, WHEREAS, the company has raised as title exceptions on the Title
     Insurance Policy or will raise in the future the following mentioned actual
     or supposed rights, interests, liens, encumbrances, adverse claims or
     defects in title, which now exist or may at any time be claimed to exist,
     all hereinafter referred to as "Exceptions to Title," to wit:

          Mechanic's lien claims and future mechanic's lien claims which may
     arise as a result of the construction of improvements on the land emanating
     from contracts negotiated by the undersigned and pursuant to work performed
     by or for the undersigned for which it has previously received
     disbursements under any existing construction contracts.

          AND, WHEREAS, the Company has been or will be requested to issue the
     Title Insurance Policy, and may hereafter in the ordinary course of its
     business issue title insurance policy or policies or commitments or date
     down endorsements therefor in the form or forms now or then commonly used
     by the Company in respect to the land or to some part or parts thereof, of
     interest therein, either free and clear of all mention of aforesaid
     exceptions to title or insuring against loss or damage by reason thereof:

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     NOW, THEREFORE, in consideration of the issuance of said title insurance
     policies as aforesaid and of the sum of One Dollar ($1.00) in hand paid to
     the undersigned by the Company, the receipt whereof is hereby acknowledged,
     the undersigned, TURNER CONSTRUCTION COMPANY does hereby for itself, its
     successors and assigns, covenant and agree with the Company: (1) to fully
     protect, defend and save harmless the Company from and against the above
     mentioned rights and liens, and each and every one of them; (2) to fully
     protect, defend and save harmless the Company from any and all loss, costs,
     damages, attorney's and solicitor's, fees and expenses of every kind and
     nature which it may suffer, expend or incur under or by reason or in
     consequence of said title insurance policies, on account of, in consequence
     of or growing out of the above mentioned rights and liens, or any of them,
     or on account of the assertion of enforcement or attempted assertion or
     enforcement thereof, or of any right existing or hereafter arising, or
     which at any time be claimed to exist under or by reason, or in consequence
     of or growing out of the said rights and liens or any of them; (3) as
     against the assertion or attempted assertion of any such rights and liens
     to defend at itS own costs and charges in behalf of and for the protection
     of the Company and of the parties insured, or who may be insured, against
     loss by it under said title insurance policies (but without prejudice to
     the right of the Company to defend if it so elects) any and every suit,
     action or proceedings in which any such rights and liens may be asserted or
     attempted to be asserted, established or enforced in, to, upon, against or
     in respect to said real estate, or any part thereof, or interest therein;
     (4) that each and every provision hereof shall extend to and be in force
     concerning any and every other title insurance policy or policies which the
     Company may at any time or times hereafter issue insuring against loss by
     reason of the "Exceptions to Title" noted above with respect to the real
     estate hereinbefore described, or any part or parts thereof, or interest
     therein.

     Anything herein to the contrary, notwithstanding, the undersigned in
     consideration of the premises agrees as follows:

     1. That the undersigned shall document each and every draw with
        contractor's and subcontractor's sworn statements together with
        supporting waivers therefor. The supporting documents for each draw
        shall be furnished within 30 days after the date of the particular draw
        and all said documentation for a particular draw shall be acceptable to
        the Company and be deposited prior to the next draw or payout request.
        In the event that the documentation is not produced as herein above
        provided, then and in that event the Company shall have the option to
        terminate this agreement and the same shall thereafter become null and
        void and of no further force and effect reserving unto the Company,
        however, all rights that may have accrued to the Company prior to the
        date of such termination.

     2. That the total aggregate amount of documentation which may be submitted
        on after-the-fact basis relating to policies to be covered by this
        undertaking will not at any one time exceed the sum of $700,000.00.

     3. At the time the payments as disclosed on the general contractor's sworn
        statement reach 90% of the total contract amount, supporting waivers
        from subcontractors and or materialmen will have to be provided on a
        current basis.

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     4. That at the time of the final draw or at such time as issuance of the
        policy endorsement required, the undersigned shall have documented all
        prior draws; and the undersigned shall document the final draw with
        contractor's and subcontractor's sworn statements together with all
        supporting waiver's therefore, or in lieu thereof shall enter into a
        Title Indemnity Agreement with Near North National Title Corporation
        covering missing documentation.

     If any of the terms or conditions of this undertaking are not kept or
     performed by the undersigned then in that event the Company sha1l have the
     option, upon thirty (30) day's written notice by registered mail to the
     undersigned to terminate this agreement and the same sha1l become null and
     void and of no further force or effect, reserving unto the Company,
     however, all rights hereunder that may have accrued to the Company prior to
     the date of such termination.

THE UNDERSIGNED HEREBY AGREES THAT IN LIEU OF AN ORIGINAL WRITTEN SIGNATURE THE
FACSIMILE SIGNATURE ON THIS DOCUMENT WILL CONSTITUTE A VALID ORIGINAL SIGNATURE
TO THIS DOCUMENT AND CAN BE RELIED UPON FOR ENFORCEMENT PURPOSES.

     IN WITNESS, WHEREOF, said ______________________ has caused these presents
     to be signed this _______ day of _______________, 19__.

     by:
        ---------------------------
     TURNER CONSTRUCTION COMPANY

     ATTEST:
            ---------------------------
     by:
        ---------------------------

     ATTEST:
            ---------------------------

------------------------------
------------------------------
------------------------------
ADDRESS<Page>

                                                                 EXHIBIT 10.35

                             SECOND LEASE AMENDMENT

     This instrument dated as of the 1st day of December, 2002 (being
hereinafter referred to as the "Effective Date"), by and between 200 SOUTH
WACKER DRIVE, L.L.C., an Illinois limited liability company ("Landlord") and
ORBITZ, LLC, a Delaware limited liability company ("Tenant").

                                R E C I T A L S:

     A.   By instrument dated as of October 1, 2000, as amended by First Lease
Amendment dated as of March 1, 2001 (together, the "Lease"), Landlord demised
and leased to Tenant certain premises comprising the entirety of the eighteenth
(18th) and nineteenth (19th) floors and containing approximately 44,766 rentable
square feet in the aggregate (the "Existing Premises") in the Building known as
200 South Wacker Drive (the "Building") in Chicago, Illinois, for a term
currently expiring on February 29, 2008 (the "Term"), on the terms and
conditions set forth therein.

     B.   Landlord is willing to lease to Tenant, and Tenant desires to lease
from Landlord, certain additional space comprised of the entirety of the
fifteenth (15th) floor of the Building containing approximately 21,897 rentable
square feet, and to further extend the Term of the Lease an additional period as
further set forth herein, all on the terms and conditions hereinafter provided.

     C.   Landlord and Tenant desire to amend the Lease as hereinafter set
forth.

     NOW, THEREFORE, in consideration of the mutual covenants and agreements
herein contained and for other good and valuable consideration, receipt whereof
is hereby acknowledged, Landlord and Tenant covenant and agree as follows:

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     1.   Effective on the Effective Date, the Lease shall be and hereby is
amended by adding to the Existing Premises that certain additional space
comprising approximately 21,897 rentable square feet located on the fifteenth
(15th) floor of the Building (the "Expansion Space") as shown and further
described on Exhibit A-1 attached hereto and made a part hereof. From and after
the Effective Date, the "Premises" demised by the Lease shall mean both the
Existing Premises and the Expansion Space and shall consist of an aggregate of
66,663 rentable square feet.

     Tenant is currently in occupancy of the Expansion Space pursuant to a
Temporary Space Agreement dated as of November 27, 2002, and Tenant therefore
agrees to accept the Expansion Space in its existing condition as of the date
hereof; provided, however, that Landlord shall make available to Tenant an
allowance in the amount of Two Hundred Eighteen Thousand Nine Hundred Seventy
Dollars ($218,970.00) (calculated by multiplying $10.00 by 21,897, being the
number of rentable square feet in the Expansion Space) (the "Allowance") to be
applied towards costs incurred by Tenant (a) for moving into the Expansion Space
and (b) in refurbishing, furnishing, equipping, wiring, cabling or otherwise
improving the Expansion Space or the Existing Premises (collectively, the
"Improvements"). Tenant shall reimburse Landlord for any out-of-pocket costs
incurred by Landlord to third parties (other than the Building manager, The Buck
Management Group L.P.) in supervising or coordinating the Improvements, and
Landlord shall further permit the Allowance to be applied to such costs. So long
as Tenant is not then in monetary default or in default under any other material
term, covenant, or condition of the Lease (in any event beyond the expiration of
any applicable cure period), Tenant may also elect to have up to $109,485.00 of
the Allowance applied as a credit against the Base Rent next coming due under
the Lease. In the event Tenant has not

                                       -2-
<Page>

requested application of all or any remainder of the Allowance by November 30,
2003, Landlord shall be entitled to the savings and Tenant shall no longer
receive credit therefor.

     The Allowance is for Tenant personally and may not be applied or used for
the benefit of any subtenant approved by Landlord nor will such Allowance inure
to the benefit of any permitted assignee of Tenant other than those successors
of Tenant to whom the Lease is assigned pursuant to Section 15.H thereof. It
shall be a condition to the application of such Allowance that Tenant not be in
monetary default or in default under any other material term, covenant, or
condition of the Lease (in any event beyond the expiration of any applicable
cure period) at any time any of the Allowance is requested. To the extent the
Allowance is used to pay for Improvements, it shall be a condition of Landlord's
obligation to pay such portion of the Allowance that Tenant shall provide to
Landlord, as appropriate, contractor's affidavits and waivers of lien covering
all labor and materials expended and used and invoices reasonably acceptable to
Landlord establishing the actual cost of and full payment for all items
purchased with the Allowance. Landlord shall disburse the Allowance to Tenant or
Tenant's contractors (as directed by Tenant) within thirty (30) days after
Tenant has submitted the required information for each such draw and has
otherwise complied with the requirements hereof. Any Improvements performed by
Tenant in either the Existing Premises or the Expansion Space shall otherwise be
made in accordance with Section 8 (Alterations and Additions) of the Lease.

     2.   Effective as of the Effective Date, Section 1 of the Lease shall be
and hereby is amended by extending the Term of the Lease an additional period
ending on November 30, 2012 (the "New Termination Date"), the same as if the New
Termination Date were the expiration date

                                       -3-
<Page>

of the Term of the Lease as originally set forth therein, on all of the terms
and conditions of the Lease as modified hereby.

     3.   Effective as of the Effective Date, Exhibit B to the Lease, being the
schedule of Base Rent referenced in Section 2 of the Lease, is amended by
deleting it in its entirety and by substituting in lieu thereof Exhibit B
attached to this Amendment.

     4.   Effective as of the Effective Date, Tenant's Proportionate Share as
set forth in Section 3A(ii) of the Lease is increased to 8.81%.

     5.   Notwithstanding anything herein to the contrary, Base Rent and
Additional Rent with respect to the Expansion Space shall be abated for the
period commencing on the Effective Date and ending on November 30, 2003, so long
as Tenant is not in monetary default or in default under any other material
term, covenant or condition of the Lease (in any event beyond the expiration of
any applicable cure period) on the date any such installment of such Base Rent
or Additional Rent is due.

     6.   Effective as of the Effective Date, Section 3 of the Lease (Additional
Rent) shall be and hereby is amended by deleting therefrom subsection A.(iv)c in
its entirety and by substituting in lieu thereof the following:

          "c. Costs of capital improvements to the Building (including any
     improvements required to the common areas of the Building in order to
     comply with the provisions of the Americans With Disabilities Act of
     1990 (42 U.S.C. Section 12-101 et seq.) (the "ADA")), except that
     Operating Expenses shall include (a) the cost of any capital
     improvement completed on or after the Commencement Date which is
     intended to reduce any component of Operating Expenses; and (b) the
     cost of any capital improvement (other than an improvement required in
     order for the Building to comply with the ADA) which is made by
     Landlord to keep the Land or Building in compliance with all
     governmental rules and regulations applicable from time to time
     thereto and enacted, adopted or modified after the date of this Lease.
     The cost of any capital improvement so included in Operating Expenses
     shall be evenly amortized over the useful life of each such capital

                                       -4-
<Page>

     improvement with interest on the unamortized amount at the lesser of
     the cost to Landlord for borrowing funds to finance such improvements
     or 2% per annum above the prime rate or base rate or other comparable
     reference rate of interest announced from time to time by Bank One,
     N.A. or other bank designated by Landlord if Bank One is not at any
     time announcing a prime rate or base rate or other comparable
     reference rate (but in no event at a rate which is more than the
     highest lawful rate allowable in the State of Illinois);"

     7.   Effective as of the Effective Date, Section 6 of the Lease (Services)
shall be and hereby is amended by deleting therefrom the last grammatical
sentence of subsection C in its entirety and by substituting in lieu thereof the
following:

     "Notwithstanding the foregoing, in the event of any such interruption
     in the furnishing of any of the foregoing services in accordance with
     the standards and otherwise pursuant to this Section 6C which, (i) if
     within the reasonable control of Landlord to prevent, continues beyond
     twenty-four (24) hours after written notice to Landlord, or (ii) if
     beyond the reasonable control of Landlord to prevent, continues beyond
     three (3) consecutive business days after written notice to Landlord
     and, in either case, materially and adversely affects Tenant's ability
     to conduct its business in the Premises, or any portion thereof, and
     on account thereof Tenant ceases doing business in the Premises, or
     such portion thereof, Base Rent and Additional Rent pursuant to
     Section 3 shall equitably abate from and after the date of such
     interference for so long as and to the extent Tenant's ability to
     conduct its business in the Premises or such portion thereof is so
     affected."

     8.   Effective as of the Effective Date, Section 16 of the Lease (Surrender
of Possession) shall be and hereby is amended by deleting therefrom the second
grammatical paragraph in its entirety and by substituting in lieu thereof the
following:

          "Upon the expiration of the Term or upon the termination of Tenant's
     right of possession, whether by lapse of time or at the option of Landlord
     as herein provided, Tenant shall forthwith surrender the Premises to
     Landlord in good order, repair and condition, ordinary wear and tear and
     damage by fire or other casualty excepted; provided, however, that Tenant
     shall not be required to remove those alterations, improvements and
     additions to the Premises, including built-in furniture or shelves,
     electrical or communication wiring, cable, or conduit, and all other
     attached items installed by Tenant in the Premises prior to December 1,
     2002 and otherwise approved by Landlord at the time of the approval of
     plans therefor pursuant to Section 8 hereof; and provided further that with
     respect to those alterations, improvements and additions to the

                                       -5-
<Page>

     Premises, including built-in furniture or shelves, electrical or
     communication wiring, cable, or conduit, and all other attached items
     installed on or after December 1, 2002, Tenant shall be required to remove
     only such alterations, improvements or additions identified by Landlord for
     removal at the time of Landlord's approval of the plans therefor. Tenant
     shall repair any damage caused by the removal of any such alterations,
     improvements or additions to the Premises. Prior to the termination of the
     Term or of Tenant's right of possession Tenant shall remove its office
     furniture, trade fixtures, office equipment and all other items of Tenant's
     movable property on the Premises. Tenant shall pay to Landlord upon demand
     the cost of repairing any damage to the Premises and to the Building caused
     by any removal. If Tenant shall fail or refuse to remove any property which
     it is required to remove from the Premises, Tenant shall be conclusively
     presumed to have abandoned the same, and title thereto shall thereupon pass
     to Landlord without any cost either by set-off, credit, allowance or
     otherwise, and Landlord may at its option accept the title to such property
     or at Tenant's expense may (i) remove the same or any part in any manner
     that Landlord shall choose, repairing any damage to the Premises caused by
     such removal, and (ii) store, destroy or otherwise dispose of the same
     without incurring liability to Tenant or any other person."

     9.   Effective as of the Effective Date, Section 20 of the Lease (Certain
Rights Reserved by Landlord) shall be and hereby is amended by deleting the last
full grammatical sentence from subsection (iii) thereof in its entirety and by
substituting in lieu thereof the following:

     "Except in case of emergency repairs, Landlord will give Tenant
     reasonable advance notice of any contemplated stoppage or entry upon
     the Premises and will use reasonable efforts to avoid unnecessary
     inconvenience to Tenant by reason thereof, including clean-up and
     removing tools and equipment from the work site."

     10.  Effective as of the Effective Date, Section 25 of the Lease (Letter of
Credit) shall be and hereby is amended by deleting therefrom the second full
grammatical sentence in its entirety and by substituting in lieu thereof the
following:

     "Provided Landlord has not theretofore drawn on the Letter of Credit
     and provided Tenant is not then in default in the payment of Rent or
     other sums due and owing to Landlord under this Lease (beyond the
     expiration of any applicable cure period) or then in default under any
     other material term, covenant or condition of this Lease (beyond the
     expiration of any applicable cure period), the Letter of Credit shall
     be reduced as follows: to sum of $1,542,857.00 on February

                                       -6-
<Page>

     28, 2002; to the sum of $1,322,449.00 on November 30, 2005; to the sum
     of $1,102,041.00 on November 30, 2006; to the sum of $881,633.00 on
     November 30, 2007; to the sum of $661,225.00 on November 30, 2008; to
     the sum of $440,817.00 on November 30, 2009; to the sum of $220,409.00
     on November 30, 2010; and to zero ($-0-) on November 30, 2011."

     11.  Effective as of the Effective Date, Section 31 of the Lease (Option to
Extend) shall be and hereby is amended by deleting therefrom Subsection A in its
entirety and by substituting in lieu thereof the following:

          "A. Such option to extend shall be exercised by Tenant by giving
     written notice to Landlord on or before but not later than November
     30, 2011."

     12.  Effective as of the Effective Date, Section 32 of the Lease (Tenant's
Option to Terminate) shall be and hereby is amended by deleting it in its
entirety and by substituting in lieu thereof the following:

          "32. TENANT'S OPTION TO TERMINATE.

          Tenant shall have and is hereby granted the option to terminate
     this Lease effective on April 30, 2009 (the "Early Termination Date")
     by:

               (i)  Delivering written notice to Landlord of its exercise of
          such termination option on or before April 30, 2008; and

               (ii) Paying to Landlord a termination fee in the amount of
          the sum of the monthly installment of Base Rent and Additional
          Rent payable (or reasonably estimated by Landlord to be payable)
          hereunder for the month of April, 2009, multiplied by twelve
          (12). The termination fee shall be paid to Landlord as follows:
          One half (1/2) concurrently with delivery of the notice described
          in clause (i), and the remainder no later than the date which is
          thirty (30) days prior to the Early Termination Date.

          Tenant's exercise of the foregoing option to terminate this Lease
     is further subject to the condition that Tenant is not in monetary
     default or in default under any other material term, covenant or
     condition of this Lease (in any event beyond the expiration of any
     applicable cure period) at the time that Tenant notifies Landlord of
     the exercise of this termination option or upon the effective date of
     such option. Tenant shall deliver the Premises to Landlord on or
     before the effective termination date in accordance with the terms and
     conditions of this

                                       -7-
<Page>

     Lease, the same as if such termination date were the original
     expiration date of the Term of this Lease."

     13.  Effective as of the Effective Date, the Lease is further amended by
adding thereto a new Section 33 (Right of First Refusal) as follows:

          "33. RIGHT OF FIRST REFUSAL. In the event that during the initial
     Term of this Lease (i.e., the period ending on November 30, 2012) any
     space on the sixteenth (16th) through twenty-fourth (24th) floors of
     the Building becomes available for leasing, and provided Landlord has
     a bona fide prospective third party tenant (a "BFT") prepared to enter
     into a lease of said space (as evidenced by one of the following: (i)
     a letter of intent signed by the BFT under which a good faith lease
     negotiation between Landlord and such BFT is about to begin; or (ii) a
     written proposal to or from the BFT under which a good faith lease
     negotiation between Landlord and such BFT is about to begin; or (iii)
     if no such letter of intent or written proposal has been submitted by,
     or to, a BFT, then the terms of the lease which have been negotiated
     in good faith by Landlord and the BFT and which Landlord is prepared
     to accept), Tenant shall have and is hereby granted the right to add
     the space which is the subject of such letter of intent, proposal or
     lease, as the case may be, to the Premises demised hereunder. Landlord
     shall notify Tenant in writing of the availability of such space and
     shall deliver to Tenant a copy of such letter of intent, proposal or
     lease, as the case may be, signed by the BFT. Tenant shall have ten
     (10) days from receipt of such notice from Landlord within which to
     notify Landlord in writing of Tenant's acceptance of such offer to add
     such space to the Premises on the same economic terms and conditions
     (i.e., rent, rent escalation, concessions and proportionate share) as
     set forth in such letter of intent, proposal or lease and otherwise on
     the same terms and conditions as set forth in this Lease (as it is now
     or may hereafter be amended, including but not limited to any options
     to extend the Term, termination rights and this right of first
     refusal), except that any space so added to the Premises shall be
     coterminous with the Term of this Lease, with a pro rata adjustment of
     any concessions contained in such letter of intent, proposal or lease.
     In the event Tenant does not so notify Landlord of Tenant's acceptance
     of such offer within said ten (10) day period or thereafter does not
     promptly enter into a lease amendment which adds such space to the
     Premises on the terms set forth above, Landlord may thereafter lease
     such space to the BFT and Tenant shall have no further right or
     interest in such space during the term of such lease with the BFT;
     provided, however, that if during the negotiations between Landlord
     and the BFT, the economic terms of the proposed transaction with the
     BFT improve (from a tenant's standpoint) by fifteen percent (15%) or
     more, then Landlord must notify Tenant of such improved terms and
     Tenant's right of first refusal set forth in this Section 33 shall
     again apply, except that Tenant shall have three (3) business days
     from receipt of notice from Landlord within which to notify Landlord
     in writing of Tenant's acceptance of such offer to add such space to
     the

                                       -8-
<Page>

     Premises on such improved economic terms and otherwise as set forth in
     this Section 33.

          Tenant's first refusal rights set forth in this Section 33 are
     expressly subject and subordinate to the rights of any third parties
     existing as of December 1, 2002, to lease any space on the sixteenth
     (16th) through twenty-fourth (24th) floors of the Building, whether
     pursuant to options to extend or expand, rights of first offer or
     first refusal, or otherwise, and Landlord represents to Tenant that
     Exhibit C attached to the Second Lease Amendment dated as of December
     1, 2002 between Landlord and Tenant, describes such parties and such
     prior rights. It shall be a condition of Tenant's right to exercise an
     option to add space under this Section 33 that Tenant not be in
     monetary default or in default under any other material term, covenant
     or condition of this Lease (in any event beyond the expiration of any
     applicable cure period) at the time it notifies Landlord of the
     exercise of such option to add such space to the Premises or upon the
     effective date of such option. The right of first refusal contained in
     this Section 33 is personal to Orbitz, LLC and to those successors of
     Orbitz, LLC to whom this Lease is assigned pursuant to Section 15.H
     hereof and may not be exercised by or for the benefit of any other
     party. This Section 33 shall be deemed deleted from the Lease and
     shall be of no further force and effect as of December 1, 2012."

     14.  On or before October 1, 2003, Landlord shall, at its sole cost and
expense (but subject to inclusion in Operating Expenses to the extent provided
in Section 3 of the Lease), cause the elevator lobby on the sixteenth (16th)
floor of the Building to be improved to a building-standard condition and in any
event to a condition consistent with the elevator lobby on other multi-tenant
floors in the Building (the "Permanent Elevator Lobby Work"). Once Landlord
commences the Permanent Elevator Lobby Work, Landlord shall substantially
complete the Permanent Elevator Lobby Work within sixty (60) days thereafter
(subject to extension on a day-for-day basis for delays beyond the reasonable
control of Landlord). During the period when the Permanent Elevator Lobby Work
is in progress, Landlord may, following five (5) business days notice to Tenant,
close access to the sixteenth (16th) floor elevator lobby on a temporary basis
for such period of time as may reasonably be necessary for the Permanent
Elevator Lobby Work to be performed. At all times during the Term of the Lease
(except when

                                       -9-
<Page>

the sixteenth (16th) floor elevator lobby is closed to permit the Permanent
Elevator Lobby Work to be performed, and except in an emergency) Landlord shall
provide Tenant with full and unimpeded access to and the nonexclusive right to
use, in common with Landlord, other tenants of the Building and their respective
employees, agents and invitees, the sixteenth (16th) floor elevator lobby as a
transfer/access floor between the Existing Premises and the Expansion Space,
notwithstanding that the entirety of the sixteenth (16th) floor of the Building
is or may be leased to a single tenant.

     15.  Promptly upon full execution and delivery of this Amendment by
Landlord and Tenant, Landlord shall execute and deliver to Tenant a bill of sale
(with a warranty as to ownership only), transferring to Tenant ownership of the
furniture (e.g., desks, chairs, tables, cubicles, etc.) existing in the
Expansion Space as of December 1, 2002.

     16.  Tenant represents and warrants to Landlord that neither Tenant nor
Tenant's officers nor agents nor anyone acting on Tenant's behalf has dealt with
any real estate broker other than The John Buck Company and Insignia/ESG, Inc.
in the negotiation or making of this Second Lease Amendment, and Tenant agrees
to indemnify and hold harmless Landlord from the claim or claims of any other
broker or brokers claiming to have caused Tenant to enter into this Second Lease
Amendment.

     17.  Except as expressly modified and amended hereby, all of the terms,
covenants and conditions of the Lease are hereby ratified and confirmed.

                                      -10-
<Page>

     IN WITNESS WHEREOF, Landlord and Tenant have executed this instrument as of
the day and year first above written.

                                          LANDLORD:

                                          200 SOUTH WACKER DRIVE, L.L.C.

                                          By:  The Equitable Life Assurance
                                               Society of the United States, a
                                               New York corporation, solely on
                                               behalf and for the benefit of
                                               its Separate Account 8, known as
                                               the "Prime Property Fund"

                                               By:   /s/ Jeffrey Perpich
                                                     ---------------------------
                                               Name: Jeffrey Perpich
                                               Its:  Investment Officer

                                          TENANT:

                                          ORBITZ, LLC, a Delaware limited
ATTEST:                                   liability company

By:                                       By:   /s/ J.G. Katz
      --------------------------------          --------------------------------
Name:                                     Name: Jeffrey G. Katz
      --------------------------------          --------------------------------
Its:                                      Its:  Chairman, President and CEO
      --------------------------------          --------------------------------

                                      -11-
<Page>

                                   EXHIBIT A-1

                                 EXPANSION SPACE

[GRAPHIC]

                                      A-1-1
<Page>

                                    EXHIBIT B

                              SCHEDULE OF BASE RENT

                        RENTABLE AREA: 66,663 SQUARE FEET

<Table>
<Caption>
      Period                        Rate Per Sq. Ft.     Annual Base Rent      Monthly Installment
--------------------------------------------------------------------------------------------------
<S>                                     <C>               <C>                    <C>
December 1, 2002 -
November 30, 2003                       $    17.00        $  1,133,271.00        $     94,439.25
December 1, 2003 -
November 30, 2004                       $    17.51        $  1,167,269.13        $     97,272.43
December 1, 2004 -
November 30, 2005                       $    18.04        $  1,202,600.52        $    100,216.71
December 1, 2005 -
November 30, 2006                       $    18.58        $  1,238,598.54        $    103,216.55
December 1, 2006 -
November 30, 2007                       $    19.14        $  1,275,929.82        $    106,327.49
December 1, 2007 -
November 30, 2008                       $    19.71        $  1,313,927.73        $    109,493.98
December 1, 2008 -
November 30, 2009                       $    20.30        $  1,353,258.90        $    112,771.58
December 1, 2009 -
November 30, 2010                       $    20.91        $  1,393,923.33        $    116,160.28
December 1, 2010 -
November 30, 2011                       $    21.54        $  1,435,921.02        $    119,660.09
December 1, 2011 -
November 30, 2012                       $    22.19        $  1,479,251.97        $    123,271.00
</Table>

                                       B-1
<Page>

                                    EXHIBIT C

                    RIGHTS PRIOR TO ARTICLE 33 FIRST REFUSAL

20th and 21st floors: Lincoln Capital renewal option, effective 12/1/06

23rd floor: Archelon first refusal and first offer rights; also renewal option,
            effective 2/1/11

24th floor: Archelon renewal option, effective 2/1/11

                                       C-1

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