generate response: I think I would be interested in the 17:54 and I need to book it for 8 people.. Intent: book_train. Slots: train-bookpeople=8, train-day=saturday, train-departure=stevenage, train-destination=cambridge, train-leaveat=17:30, 5:30 pm
Response: Okay TR2442 is booked for 8 people at 17:54 on saturday. It will cost 81.92 GBP in total, and your reference number is CCTYHUU8 .