i need to take a train from cambridge , i need to arrive by 18:30 .
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': 'quite a few'} {'service': 'train', 'act': 'request', 'slot_name': 'day', 'value': '?'}
we have quite a few trains that may suit your needs . do you have a particular day you are traveling ?