generate response: That sounds great. I would like to book it for 7 people. I will also need the reference number. Intent: book_train. Slots: train-bookpeople=7, train-day=wednesday, train-departure=ely, train-destination=cambridge, train-leaveat=12:00
Response: Booking was successful, the total fee is 35.2 GBP payable at the station .Reference number is : JD1P380X .