hello , i am looking for a train departing from cambridge on tuesday .
user
where will you be traveling to ?
assistant
to broxbourne .
user
i have 19 trains going to your destination . to help narrow down the search , can you tell me what time you want to leave or arrive by ?
assistant
i would like to leave after 17:30 .
user
first train pulls out at 18:01 . can i get you tickets ?
assistant
no thank you but can i get the train id and travel time for that ?