get_flight_cost(travel_from='LAX', travel_to='JFK', travel_date='2024-11-15', travel_class='business')
compute_exchange_rate(base_currency='USD', target_currency='GBP', value=2400.0)
set_budget_limit(access_token='abc123xyz', budget_limit=10000.0)
book_flight(access_token='abc123xyz', card_id='card_1496', travel_date='2024-11-15', travel_from='LAX', travel_to='JFK', travel_class='business')
close_ticket(ticket_id='ticket_001')