i am looking for a cheap restaurant that serves world food ?
{'service': 'restaurant', 'act': 'request', 'slot_name': 'food', 'value': '?'} {'service': 'restaurant', 'act': 'nooffer', 'slot_name': 'none', 'value': 'none'}
unfortunately there are now restaurant -s that meet those specification -s . would you like me to look for a different kind of food ?