i am looking for an expensive restaurant in the center of town .
{'service': 'restaurant', 'act': 'request', 'slot_name': 'food', 'value': '?'} {'service': 'restaurant', 'act': 'inform', 'slot_name': 'price', 'value': 'expensive'} {'service': 'restaurant', 'act': 'inform', 'slot_name': 'choice', 'value': 'many'} {'service': 'restaurant', 'act': 'inform', 'slot_name': 'area', 'value': 'centre of town'}
there are many expensive restaurant -s in the centre of town , is there a specific type of food you would like ?