generate response: Yes, let's book it for four, please. May I have a reference number?. Intent: book_train. Slots: train-bookpeople=4, train-day=sunday, train-departure=bishops stortford, train-destination=cambridge, train-leaveat=16:30
Response: Alright, I've got 4 tickets booked leaving at 17:29. Your reference number is ZIHX30RA .