generate response: I will be leaving bishops stortford going to cambridge, I need 6 tickets and the conf. # too please. Intent: book_train. Slots: train-bookpeople=6, train-day=tuesday, train-departure=bishops stortford, train-destination=cambridge, train-leaveat=18:15
Response: Okay, I have booked you on TR9286 leaving Tuesday at 19:29 and arriving 20:07. Your reference number is CGU6UO45 .