generate response: Just need the four tickets.. Intent: book_train. Slots: train-bookpeople=4, train-day=sunday, train-departure=cambridge, train-destination=peterborough, train-leaveat=09:00
Response: Booking was successful, the total fee is 52.8 GBP payable at the station. Your reference number is L3RH9ZWP . Do you need anything else?