generate response: Yes, I need 4 tickets.. Intent: book_train. Slots: train-arriveby=21:00, train-bookpeople=4, train-day=thursday, train-departure=cambridge, train-destination=leicester
Response: Booking was successful, the total fee is 151.19 GBP payable at the station. Reference number is : DMK0CENV . Do you need anything else?