generate response: I'd like to depart from bishops stortford and leave after 12:30. Intent: find_train. Slots: train-day=friday, train-departure=bishops stortford, train-destination=cambridge, train-leaveat=12:30
Response: Train number TR4070 leaves at 13:29 and arrives at 14:07. Fare will be 10.10 pounds. Would you like me to book tickets?