I am looking for information in Cambridge 
Certainly! Are you looking for a place to stay, a restaurant, attraction information, or do you need transportation? 
I need a train that leaves after 15:45 on Wednesday.
Where will you be leaving from and what is your destination?
I want to go to Stansted Airport.  
Those trains leave every hour. There are trains that meet your specifications. The earliest would leave at 16:40 and arrive at the airport by 17:08.
I also need suggestions for places to go. I'm interested in seeing colleges in the north.
There are no colleges in the north. Would you like a different area or a different type of attraction?
Could you please try for something in the boat category?
The Riverboat Georgina in a boating place and is in the NORTH