generate response: Ok, that would be great. Can I get the reference number please?. Intent: book_train. Slots: train-bookpeople=7, train-day=wednesday, train-destination=birmingham new street, train-leaveat=18:15
Response: TR9236 leaves cambridge on wednesday on 19:01 and arrives at birmingham new street at 21:44. I have booked 7 tickets. Your Reference number is : 2BGY3ZRW .