generate response: That will work for me. Can you book 5 tickets for me?. Intent: book_train. Slots: train-bookpeople=5, train-day=friday, train-departure=cambridge, train-destination=ely, train-leaveat=18:00
Response: I've booked 5 tickets on the 19:50 train leaving Cambridge to Ely. Your total fare is 22GBP, payable at the station, your reference number is HRBLRJCU .