generate response: No. I need to book this for 5 people. Please send me the reference number too.. Intent: book_train. Slots: train-bookpeople=5, train-day=saturday, train-departure=london liverpool street, train-destination=cambridge, train-leaveat=17:45
Response: I have you booked on TR3940 Saturday leaving at 19:39 and arriving at 21:07. The reference number is X56OZZGL and it will be 13.28 GBP at the station.