i am looking for a restaurant in the south that is cheap .
{'service': 'restaurant', 'act': 'select', 'slot_name': 'none', 'value': 'none'} {'service': 'restaurant', 'act': 'inform', 'slot_name': 'food', 'value': 'chinese'} {'service': 'restaurant', 'act': 'inform', 'slot_name': 'food', 'value': ' portuguese '} {'service': 'restaurant', 'act': 'inform', 'slot_name': 'price', 'value': 'cheap '} {'service': 'restaurant', 'act': 'inform', 'slot_name': 'choice', 'value': 'two '} {'service': 'restaurant', 'act': 'inform', 'slot_name': 'area', 'value': 'south'} {'service': 'restaurant', 'act': 'inform', 'slot_name': 'name', 'value': 'the lucky star'} {'service': 'restaurant', 'act': 'inform', 'slot_name': 'name', 'value': ' nandos'}
there are 2 cheap place -s in the south . the lucky star serves chinese food , and nandos serves portuguese food . which do you prefer ?