Multi-turn user requests:
user: I have to arrange a flight from San Francisco to Los Angeles for my journey next month November on two days after close of the 14th day in the year 2024. I'll be flying business class, and I'll be settling the payment using my American Express card with id 'AMEX123456789'. Would you be able to take care of this reservation using access token 'abc123xyz' for me?
user: Regrettably, unexpected situations have come up, and I've had to alter my plans. Would you kindly cancel the flight booking that I made previously?

Involved API classes: TravelAPI

Initial environment state:
TravelAPI: credit_card_list: AMEX123456789: card_type: American Express
card_number: 378282246310005
expiry_date: 12/25
cardholder_name: Michael Thompson
balance: 15000
access_token: abc123xyz
token_type: Bearer
token_expires_in: 3600
token_scope: read write
user_first_name: Michael
user_last_name: Thompson
budget_limit: 2000

Ground-truth function call path:
TravelAPI.get_flight_cost
TravelAPI.book_flight
TravelAPI.cancel_booking

Functions held out until the model asks (by turn index):
1: book_flight