generate response: Yes book 3 tickets for me and then give me a reference number for that booking. Intent: book_train. Slots: train-arriveby=11:15, train-bookpeople=3, train-day=sunday, train-departure=cambridge, train-destination=london kings cross
Response: Your booking was successful, the total fee is 56.64 GBP payable at the station. Your Reference number is: OB34HA2U . Can i help you with anything else today?