list_all_airports()
get_nearest_airport_by_city(location='Rivermist')
get_flight_cost(travel_from='RMS',travel_to='JFK',travel_date='2024-09-10',travel_class='economy')
compute_exchange_rate(base_currency='USD', target_currency='RMB', value=420.0)
set_budget_limit(access_token='eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9', budget_limit=2940.0)
book_flight(access_token='eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9', card_id='card6749', travel_date='2024-09-10', travel_from='RMS', travel_to='JFK', travel_class='economy')
close_ticket(ticket_id=458219)