generate response: Any time is fine as long as I can book for four people. I also need the reference number, please.. Intent: book_train. Slots: train-arriveby=20:45, train-bookpeople=4, train-day=wednesday, train-departure=cambridge, train-destination=peterborough, train-leaveat=dontcare
Response: Alright. I booked your train leaving Cambridge at 19:34 and arriving in Peterborough at 20:24. The reference number is A8T38EJZ .