You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Kathleen Carter.

ASSISTANT: How can I assist you Carter?

USER: I need to do some updates in my existing reservation, as my friends have already booked my ticket in another flight along with theirs for a trip, I was not aware of this thing, can you please make some changes in the existing ticket for me?

ASSISTANT: Sure,please wait for a while.

USER: Ok, take your own time.

ASSISTANT: May I know your new travelling details?

USER: My new airport codes are ORD to DEN.

ASSISTANT: May I know your travelling dates?

USER: My new trip dates are 11/24 and 11/26.

ASSISTANT: May I know your price limit?

USER: My price limit is 1000.

ASSISTANT: There is a AA 1002 airline which matches your requirements. Shall I proceed with booking?

USER: Please book it.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you for approaching us.