generate response: That works for me. I need the reference number.. Intent: book_train. Slots: train-bookpeople=2, train-day=sunday, train-departure=london kings cross, train-destination=cambridge, train-leaveat=14:30
Response: I was able to successfully book your tickets. The reference number is 02BPMPU4 and the total is 37.76 GBP which is payable at the station.