generate response: It will be for 6 people at 16:15 on monday.. Intent: find_train. Slots: restaurant-area=north, restaurant-bookday=monday, restaurant-bookpeople=6, restaurant-booktime=16:15, restaurant-food=indian, restaurant-name=royal spice, restaurant-pricerange=cheap
Response: Unfortunately they are booked then, is it alright to choose another day or time?