i am looking for a train departing ely and should arrive by 16:45 .
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': '42'} {'service': 'train', 'act': 'inform', 'slot_name': 'depart', 'value': 'ely'} {'service': 'train', 'act': 'request', 'slot_name': 'dest', 'value': '?'}
i can help with that ! there are a total of 42 trains departing from ely . what is your destination so i can narrow this down for you ?