generate response: Sure! Can you tell me the cost, too?. Intent: book_train. Slots: train-arriveby=12:30, train-bookpeople=4, train-day=sunday, train-departure=cambridge, train-destination=stevenage
Response: Your tickets have been booked. Reference #: HHBZ1L0T and the total fee is 40.96 GBP, payable at the station. Can I help you with anything else?