hi , i am looking for a train to stevenage .
user
there are several . when do you plan on leaving ?
assistant
i would like to leave sometime after 11:00 on tuesday .
user
there are 7 trains with that criteria . all of them are leaving from cambridge , leaving after 11 . is there a certain time you would like to arrive by ?
assistant
i would like the train that leaves as close to 11:15 as possible please .