verify_traveler_information(first_name='Michael', last_name='Thompson', date_of_birth='1950-01-01', passport_number='P12345678')
get_nearest_airport_by_city(location='Rivermist')
get_flight_cost(travel_from='RMS', travel_to='GFD', travel_date='2024-12-15', travel_class='business')
set_budget_limit(access_token='abc123xyz', budget_limit=5000)
book_flight(access_token='abc123xyz', card_id='card1234', travel_date='2024-12-15', travel_from='RMS', travel_to='GFD', travel_class='business')
retrieve_invoice(access_token='abc123xyz', booking_id='3426812')