generate response: The train should go to Cambridge on Thursday. I would also need the train ID.. Intent: find_train. Slots: restaurant-area=dontcare, restaurant-bookday=thursday, restaurant-bookpeople=6, restaurant-booktime=19:15, restaurant-food=chinese, restaurant-name=ugly duckling, restaurant-pricerange=expensive, train-arriveby=14:15, train-day=thursday, train-departure=kings lynn, train-destination=cambridge
Response: When would you like to leave at?