what good attractions are there in the city centre ?
user
there are over 40 of them , many of which are free , did you have anything more specific in mind ?
assistant
no , just pick something .
user
the cambridge contemporary art museum is a good attraction that is free . would you like the address or directions ?
assistant
actually , can i get the address and phone number please ?
user
sure , it is located at 6 trinity street . the phone number is 01223324222 . can i help you further ?
assistant
yes . i need to find a train to travel from stevenage to cambridge .
user
okay , what day and what time would you like to leave ? the ride is about 49 minutes and the train comes every 2 hour -s .
assistant
i need to leave saturday and must arrive by 20:00 . i do not care what time the train leaves as long as i arrive on time .