Multi-turn user requests:
user: Hello, I've just come upon a remarkable opportunity to explore some new places, and it's crucial that my documents are up-to-date before I depart. Would you be able to verify my personal details? I'm [Redacted], with a birth date of 1995-08-15, and my passport number is 'US1234'.
user: Wonderful news has reached me—it turns out everything is verified accurately! Now, to facilitate a smooth departure, I must quickly locate the nearest airport.
user: The city you're looking for is San Francisco, departing from LAX.
user: Having affirmed the specifics of my journey, I'm now curious to determine the cost of a first-class flight on December 15th 2024 from LAX to the San Francisco airport.
user: Splendid, all arrangements are in place! Might you finalize the booking for my flight on December 15th utilizing my funds available through card ID 'card_9012'? I'm equipped with my authorization token 'auth_token_987654321' for any verification needed.
user: Alas, circumstances have altered! I urgently need to reverse the reservation I just completed. Please apply the same authorization token to manage the cancellation.

Involved API classes: TravelAPI

Initial environment state:
TravelAPI: credit_card_list: card_9012: card_number: 8796-1234-5678-9012
cardholder_name: Michael Thompson
expiry_date: 12/25
balance: 5000
access_token: auth_token_987654321
token_type: Bearer
token_expires_in: 3600
token_scope: booking_management
user_first_name: Michael
user_last_name: Thompson
budget_limit: 3000

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

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