hi , yes , i am looking for a train leaving on tuesday that will arrive by 12:30 . i will be departing from cambridge .
where will you be departing from ?
{'service': 'train', 'act': 'inform', 'slot_name': 'day', 'value': 'tuesday'} {'service': 'train', 'act': 'request', 'slot_name': 'dest', 'value': '?'}
where will you be headed on tuesday ?