i am looking for a train departing bishops stortford and going to cambridge .
user
i can definitely help with that . there are a lot of trains to choose from . did you have a travel day and time in mind ?
assistant
i would like to leave on sunday sometime after 15:15 .
user
tr4651 departs at 15:29 and arrives at 16:07 . would you like me to book that for you ?
assistant
yes , 2 tickets please .