i would like to find a train that leaves after 17:00 on saturday .
user
absolutely , i need departure and destination information and a time you need to arrive by .
assistant
i'll be departing from broxbourne and i would like to go to cambridge .
user
i have 7 available . the first leaves at 17:32 , and arrives at 18:32 . would you like me to book that for you ?
assistant
i am not looking to book at the moment , can i just get the train id ? thanks !