i am looking for a train leaving from cambridge on saturday .
user
sure can you tell me where you are heding for and what time you would lie to leave or get there ?
assistant
the train should leave after 16:00 and should depart from london liverpool street
user
i am a little confused , you said you are departing from both cambridge and london liverpool street . are you sure is not your destination ?
assistant
sorry , i am departing from london liverpool street .
user
there are 4 trains on saturday with that route that leave after 16:00 . your options are 17:39 , 19:39 , 21:39 and 23:39 . the duration of the ride is 88 minutes .
assistant
can i get the price on 1 of those please ?