generate response: Book it for four people. Give me the reference number.. Intent: book_train. Slots: train-arriveby=08:00, train-bookpeople=4, train-day=friday, train-departure=stevenage
Response: Booking was successful, the total fee is 51.2 GBP payable at the station. Reference number is : 8NFJV4J6 . Will there be anything else today?