i need a taxi to arrive by 17:30 at the cambridge punte . yes , the cambridge punter and i will be departing from the city stop restaurant .
i would be happy to help with your request . did you mean the cambridge punter ? where will you be departing from ?
{'service': 'taxi', 'act': 'request', 'slot_name': 'depart', 'value': '?'}
ok , what is your departure site ?