are there any trains leaving out of cambridge on sunday ? stevenage . i need to arrive by 18:45
yes . where would you be going to ?
{'service': 'train', 'act': 'inform', 'slot_name': 'arrive', 'value': '18:10'} {'service': 'train', 'act': 'inform', 'slot_name': 'id', 'value': 'tr7729'} {'service': 'train', 'act': 'offerbook', 'slot_name': 'none', 'value': 'none'}
tr7729 will arrive at 18:10 . would you like to book ?