generate response: Please book it. I will need the reference number as well.. Intent: book_train. Slots: train-arriveby=21:08, train-bookpeople=1, train-day=friday, train-departure=cambridge, train-destination=stansted airport, train-leaveat=20:40
Response: Good news! Booking was successful, the total fee is 10.1 GBP payable at the station . Reference number is : N51YGQ3S . Is there anything else you need?