generate response: Yes. For 2 people. Thank you so much.. Intent: book_train. Slots: train-bookpeople=2, train-day=sunday, train-departure=cambridge, train-destination=stansted airport, train-leaveat=20:15
Response: I've booked 2 tickets on train TR7554 departing Cambridge for Stansted at 20:40. Your total fare is 16.16 GBP, payable at the station. Your reference number is 62AZ9535 .