generate response: Can you give me the reference number for the train? I would like cheap italian food in the center.. Intent: find_train. Slots: restaurant-area=centre, restaurant-food=italian, restaurant-pricerange=cheap, train-arriveby=19:30, train-day=friday, train-departure=broxbourne, train-destination=cambridge
Response: How many passengers should I book on the train? There are three cheap Italian places. I could suggest Zizzi Cambridge. Would you like to book a table?