verify_traveler_information(first_name='Eleanor', last_name='Smith', date_of_birth='1985-03-15', passport_number='US123456789')
get_nearest_airport_by_city(location='Crescent Hollow')
set_budget_limit(access_token='abc123xyz',budget_limit=1000)
book_flight(access_token='abc123xyz', card_id='primary', travel_date='2024-12-15', travel_from='CRH', travel_to='HKG', travel_class='economy')
retrieve_invoice(access_token='abc123xyz', booking_id='3426812')
contact_customer_support(booking_id='3426812', message='Urgent: Discrepancy encountered with the booking. Please resolve.')