generate response: Yes. I need 4 tickets.. Intent: book_train. Slots: train-bookpeople=4, train-day=tuesday, train-departure=peterborough, train-destination=cambridge, train-leaveat=10:15
Response: Okay, I have booked 4 tickets on TR 5547, leaving from Peterborough at 10:19 and arriving in Cambridge at 11:09. Your reference number is IT0CF4V7 . Total fee is 66.