Multi-turn user requests:
user: I've recently retired after spending years poring over electrical blueprints and energy systems across Spain. I'm planning an invigorating journey and wish to ensure all my travel details are meticulously verified. Please confirm my information using the passport number '123456' I've shared with you. The name and DoB are Carlos Martinez and March 23, 1968
user: In verifying this, kindly identify the most convenient airport for me if I'm residing in bustling New York City. Additionally, provide an estimate for a first-class journey to the sun-drenched coast of Los Angeles next week Oct 10 2024.
user: With this estimate in hand, arrange the flight using my credentials with id 'card_3456' and access token 'abc123xyz', ensuring a seamless payment process and detailing my travel itinerary.
user: However, an unexpected situation has prompted me to reconsider. Kindly cancel the flight immediately, sparing no time.
user: As I've encountered some unexpected issues, I need to submit a formal complaint about the abrupt cancellation. Title it 'Flight Cancellation Experience' and include in the message: 'The abrupt cancellation caused significant inconvenience, disrupting my travel plans and causing financial loss.'. My username is cmartinez, and password is SecurePass123

Ground-truth function call sequence:
TravelAPI.verify_traveler_information
TravelAPI.get_nearest_airport_by_city
TravelAPI.get_flight_cost
TravelAPI.book_flight
TravelAPI.cancel_booking
TicketAPI.create_ticket
TicketAPI.edit_ticket