generate response: That would be great. Ill need 6 tickets. Intent: book_train. Slots: train-arriveby=19:45, train-bookpeople=6, train-day=sunday, train-departure=stevenage, train-destination=cambridge, train-leaveat=05:54
Response: Booking was successful, the total fee is 61.44 GBP payable at the station . Reference number is : 0U82YPD7 .