generate response: Yes that works great. Can you book 2 tickets for that train and give me the reference number?. Intent: book_train. Slots: train-bookpeople=2, train-day=thursday, train-destination=ely, train-leaveat=15:15
Response: Your booking was successful. The total fee is 8.8 GBP payable at the station. Your reference number is H0BMD920 .