Multi-turn user requests:
user: As I'm in the process of planning an upcoming journey, I have specific departure and arrival cities in mind. Could you assist in estimating the airfare between two cities from the comprehensive list available through the system? Please note, I am considering traveling next weekend with a preference for a business class seat.
user: The cities are ORD and SVP, and the travel date is July 14th, 2024.
user: In pursuit of a cost-effective travel experience, I seek your guidance to manage my expenditure effectively. Could you help establish a budget limit of 20,000 RMB using my currently active account? The access token is 'abc123xyz456'.

Involved API classes: TravelAPI

Initial environment state:
TravelAPI: credit_card_list: card123: card_number: 1234-5678-9012-3456
expiry_date: 12/25
cardholder_name: Michael Smith
balance: 50000
booking_record: booking001: departure_city: New York
arrival_city: London
class: Business
cost: 1500
access_token: abc123xyz456
token_type: Bearer
token_expires_in: 3600
token_scope: read_write
user_first_name: Michael
user_last_name: Smith
budget_limit: 20000

Ground-truth function call path:
TravelAPI.list_all_airports
TravelAPI.get_flight_cost
TravelAPI.compute_exchange_rate
TravelAPI.set_budget_limit

Functions held out until the model asks (by turn index):
2: get_flight_cost