generate response: Can you arrange travel for 7 people for TR1389 on Sunday?. Intent: book_train. Slots: train-bookpeople=7, train-day=sunday, train-departure=cambridge, train-destination=bishops stortford, train-leaveat=20:30
Response: Of course. The reference number is NI1LNIIP . The total fee is 56.56 which can be paid at the station.