hi , can you help me find a train arriving by 19:00 that leaves on monday ? i will b departing from cambridge and arriving in ely .
where are you departing from , and arriving to ?
{'service': 'train', 'act': 'inform', 'slot_name': 'arrive', 'value': '18:07'} {'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': '17:50'} {'service': 'train', 'act': 'inform', 'slot_name': 'id', 'value': 'tr4294 '} {'service': 'train', 'act': 'offerbook', 'slot_name': 'none', 'value': 'none'}
tr4294 will leave at 17:50 and arrive by 18:07 . do you need to book tickets ?