[multi_turn_composite_184]
Ground truth: get_flight_cost(travel_from='JFK', travel_to='LAX', travel_date='2024-12-15', travel_class='business')
book_flight(access_token='abc123xyz', card_id='card_2108', travel_date='2024-12-15', travel_from='JFK', travel_to='LAX', travel_class='business', travel_cost=1140.0)
retrieve_invoice(access_token='abc123xyz', booking_id='5431449')
cancel_booking(access_token='abc123xyz', booking_id='5431449')
send_message(sender_id='USR005', receiver_id='USR006', message='Hi Sam, my travel plans have changed. I'll update you soon.')
view_messages_received()
delete_message(user_id='USR005', receiver_id='USR006', message_id=67410)