generate response: I don't need a ticket today, but could you tell me the price?. Intent: find_train. Slots: train-arriveby=08:30, 8:30, train-day=tuesday, train-departure=cambridge, train-destination=london kings cross, train-leaveat=dontcare
Response: If you are leaving from Cambridge to London Kings Cross, the ticket price is 23.60 pounds. Do you need more information?