i need to take a train from cambridge , i need to arrive by 18:30 . yes , i need to leave broxbourne on tuesday .
we have quite a few trains that may suit your needs . do you have a particular day you are traveling ?
{'service': 'train', 'act': 'offerbook', 'slot_name': 'arrive', 'value': '6:01'} {'service': 'train', 'act': 'offerbook', 'slot_name': 'choice', 'value': 'one '}
okay , i have 1 arriving at 6:01 , would you like me to book it ?