i am looking for a train going to cambridge and leaving after 10:30 .
{'service': 'train', 'act': 'offerbook', 'slot_name': 'none', 'value': 'none'} {'service': 'train', 'act': 'request', 'slot_name': 'depart', 'value': '?'}
i would be happy to help you find a train . can you please tell me where you will be departing from ?