generate response: Hmmm, are you sure there is not an indian restaurant in the south that I can book for 9:30 on tuesday for 7 people?. Intent: book_train. Slots: restaurant-area=south, restaurant-bookday=tuesday, restaurant-bookpeople=7, restaurant-booktime=09:30, 9:30, restaurant-food=indian, restaurant-pricerange=expensive, train-bookpeople=7, train-day=tuesday, train-departure=cambridge, train-destination=peterborough, train-leaveat=21:30
Response: No, I'm very sorry there is nothing that early. Would you like to try a different day?