Multi-turn user requests:
user: Imagine you've meticulously planned a surprise getaway to the Maldives, brimming with excitement to ensure each detail unfolds seamlessly. Your first step is securing your travel account access; kindly authenticate with your credentials. My access token of abc123xyz, a client ID of my_client_id, a client secret of my_client_secret, and a refresh token of my_refresh_token. The grant type should be set to read_write, and the user's first name is Michael.
user: The user's last name is Thompson.
user: Fantastic! Now that authentication is successfully completed, let's move forward with booking your idyllic escape. You opt for your trusted credit card, bearing the id credit_9988, to cover all logistical costs. Book your journey from JFK to MPC for December 25th, 2024, travelling first class, at a cost of 3000.50 dollars.
user: Oh dear! Unexpected changes have arisen. Could you please cancel your recent booking as a more urgent matter needs your attention?
user: In light of these new developments, you'd prefer to formally notify your travel agent about the abrupt change in your itinerary. Would you be kind enough to generate a ticket titled 'Urgent Change in Travel Plans’ with a detailed explanation outlining the necessity for these adjustments?

Ground-truth function call sequence:
TravelAPI.authenticate
TravelAPI.register_credit_card
TravelAPI.book_flight
TravelAPI.cancel_booking
TicketAPI.create_ticket
TicketAPI.edit_ticket