generate response: That's pretty early. Would there be a later train that arrives by 15:00?. Intent: find_train. Slots: train-arriveby=15:00, train-day=wednesday, train-departure=cambridge, train-destination=bishops stortford
Response: TR3844 departs Cambridge Wednesday at 13:29 and arrives in Bishops Stortford by 14:07. Would you like to reserve a seat?