yes i am looking for a train leaving cambridge on tuesday . also the destination is london kings cross and leaves after 12:30 .
i can help you with that . the first 1 departs at 05:00 and the last trains runs at 13:00 . how many tickets would you like ?
{'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': '13:00'} {'service': 'train', 'act': 'offerbook', 'slot_name': 'none', 'value': 'none'}
there is a train leaving at 13:00 that fits your criteria . would you like me to book it for you ?