i need to find a train that leaves on saturday and arrives by 08:45 i'll be leaving cambridge to get to ely .
can you tell me what your departure city and destination are ?
{'service': 'train', 'act': 'inform', 'slot_name': 'arrive', 'value': '7:50'} {'service': 'train', 'act': 'inform', 'slot_name': 'id', 'value': 'tr5344'} {'service': 'train', 'act': 'select', 'slot_name': 'none', 'value': 'none'}
tr5344 arrives by 7:50 . does that work for you ?