generate response: Please book for 6 people.. Intent: book_train. Slots: train-bookpeople=6, train-day=sunday, train-departure=cambridge, train-destination=stansted airport, train-leaveat=18:00
Response: Booking was successful, the fee is 48.48 GBP payable at the station . Reference number is 4ESBHTB0 . Is there anything else I can help you with?