generate response: kings lynn and I also looking for a restaurant in the south and expensive price range. Intent: find_train. Slots: restaurant-area=south, restaurant-pricerange=expensive, train-arriveby=19:30, train-day=sunday, train-departure=cambridge, train-destination=kings lynn
Response: Sure, I can help you with that. First, let's find the train. How early would you like to leave?