Question: What airport is one of Habib Group's airline based at?

Context paragraphs:
Arif Habib: Muhammad Arif Habib (Urdu: ‎ ; b. 1953) is a Pakistani business magnate and philanthropist.  He is the chief executive officer of Arif Habib Group, one of the country's largest business conglomerates.  Headquartered in Karachi, the group consists of 13 companies with holdings in real estate, financial services, energy, cement, steel and fertiliser production.  As of 2012, Arif Habib Group had 11,000 employees and an annual revenue of Rs.  100 billion.

Indochina Airlines: Indochina Airlines (Vietnamese: "Hãng Hàng không Đông Dương" ) was a Vietnamese airline based in Ho Chi Minh City.  It was the first operational private airline based in Vietnam, originally licensed in May 2008 as Air Speed Up (Vietnamese: "Hãng hàng không Tăng Tốc" ).  The founder and chairman of the board was Vietnamese musician Hà Hùng Dũng.  Indochina Airlines began selling tickets on 12 November 2008 and launched its first commercial flight from Tân Sơn Nhất International Airport in Ho Chi Minh City to Nội Bài International Airport in Hanoi and Đà Nẵng International Airport in Đà Nẵng on 25 November 2008.  After a series of difficulties, including unresolved debts and a drop in customers, Indochina Airlines ceased flying on November 25, 2009; its schedule was revoked two days later.

Bank Al Habib: The Bank AL Habib Limited, in Pakistan, is run by the Dawood Habib family group of companies.  The bank's head office is located in the city of Multan in Punjab, but its principal office is located in Karachi.  Presently, the bank has a network of 623 branches (inclusive of sub branches) and offshore banking units in Bahrain, Turkey and EPZ.  Habib Group's involvement in banking services dates back to 1930s.  They launched HBL Pakistan, which was nationalized in 1971 and is still one of the largest banks in Pakistan; since 2002 it has been jointly owned by the government and the Aga Khan Fund for Economic Development.  After the privatization scheme announced in 1991 by the Pakistani Government, Habib Group were the first to be granted permission to start a private bank, the Bank AL Habib Limited.

Regent Airways: Regent Airways (Bengali: রিজেন্ট এয়ারওয়েজ ) is a Bangladeshi airline owned by HG Aviation Ltd, a fully owned subsidiary of Habib Group.  Regent Airways is based at Hazrat Shahjalal International Airport.

Maluti Sky: Maluti Sky was an airline based at Moshoeshoe I International Airport in Maseru, the capital of Lesotho.  It offered scheduled and charter flights.  The airline was founded in 2009 as MGC Airlines, becoming the first privately owned airline in Lesotho.  Maluti Sky began passenger flights to Johannesburg in March 2016; it was at that time the only airline based in the country since Lesotho Airways ceased operations in 1996.  However, the airline terminated all flights in 2017 as a result of financial issues.

Habib Group: The Habib Group is a prominent Bangladeshi industrial conglomerate.  Founded in Chittagong in 1947, it employs over 20,000 people and has various interests in textiles, aviation, cement, steel, real estate, insurance and banking.  It is the parent company of Regent Airways, a Bangladeshi private airline, and Regent Power Limited, a power generating company.

House of Habib: The House of Habib is a prominent Khoja business family in Pakistan.  The Habib group's most famous and successful subsidiary is its Banking and Finance division.

Regent Power Limited: Regent Power is a Private Limited company incorporated in 2007 and a concern of Habib Group of Chittagong.  The plant is located at Barabkunda in Chittagong under independent power producers (IPP) arrangement of the government.  Regent Power is operating on natural gas with the capacity to produce 22 MW per day.

Aziz Fatimah Medical and Dental College: Aziz Fatimah Medical and Dental College Faisalabad (Urdu: ‎ ) or AFMDC, is a private medical college in Punjab, Pakistan.  It is located on West Canal Road in the old Ghafoor Bashir Children Hospital Building.  It is a joint project of Sitara Group of Industries and Al Habib Group of Colleges and is affiliated with UHS Lahore.

Champion Air: Champion Air was an airline based in Bloomington, Minnesota, USA.  It operated general charter services to sports teams, vacation wholesalers and government agencies.  It also offered limited scheduled service.  Its main base was Minneapolis-Saint Paul International Airport, with hubs at Denver International Airport, Dallas-Fort Worth International Airport, Detroit Metropolitan Wayne County Airport, McCarran International Airport in Las Vegas, Lambert-St.  Louis International Airport, and Will Rogers World Airport in Oklahoma City.  The airline ceased all operations on May 31, 2008.  Until its shutdown, the airline was a prime contractor for the Justice Prisoner and Alien Transportation System.

Supporting paragraphs: Habib Group Regent Airways
Answer: Hazrat Shahjalal International Airport