i want to try food in cambridge and need to get a train to stevenage that leaves after 14:45 . i want to leave on sunday from cambridge .
hello , trains depart every 2 hour -s on the :21 s , what day are you hoping to travel ?
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': '5'} {'service': 'train', 'act': 'request', 'slot_name': 'arrive', 'value': '?'}
there are 5 such trains . do you have a preferred arrival time ?