i need help finding a train leaving cambridge after 15:30 . im going to cambridge
i found 623 trains that leave at that time . what is your destination ?
{'service': 'train', 'act': 'nooffer', 'slot_name': 'dest', 'value': 'cambridge'} {'service': 'train', 'act': 'nooffer', 'slot_name': 'depart', 'value': 'cambridge '} {'service': 'train', 'act': 'request', 'slot_name': 'dest', 'value': '?'}
there are no trains leaving cambridge and also going to cambridge , did you mean to choose another destination ?