generate response: depart from peterborough and should leave after 12:30, can you book it and I need travel time and price. Intent: find_train. Slots: train-day=tuesday, train-departure=peterborough, train-destination=cambridge, train-leaveat=12:30
Response: There is a train that leaves at 12:48 and arrives at 13:38 and costs 16.50 pounds. Would you like me to book that?