i am looking for an expensive restaurant in the west .
{'service': 'restaurant', 'act': 'inform', 'slot_name': 'price', 'value': 'expensive'} {'service': 'restaurant', 'act': 'inform', 'slot_name': 'area', 'value': 'west'} {'service': 'restaurant', 'act': 'inform', 'slot_name': 'name', 'value': 'graffiti'}
graffiti is an expensive restaurant in the west that is available .