generate response: I'll be leaving from Stevenage on Friday after 15:15. How much will that cost?. Intent: find_train. Slots: train-day=friday, train-departure=stevenage, train-destination=cambridge, train-leaveat=15:15
Response: There are 5 different trains for that day/time, but they are all 12.80 pounds. Would you like to book a ticket?