I am  traveling to Cambridge and looking forward to try local restaurants.
Okay, any type in mind?
The train I'm looking for should depart from Stevenage and be leaving after 16:45. Can you help?
Okay. You mentioned finding a local restaurant, initially. Would you like me to search for one? If so, what kind of cuisine?
I'm looking for something local. What do you recommend?
It depends on what your price range is. 
Actually I am craving singaporean food, price is no object.  I would also like something in the centre area.
Unfortunately, there is not a singaporean restaurant in the centre of town. Any other preferences?
Do you have any asian expensive restaurants?
yes, there's a place called kymmoy.
Thank you so much for your information.
enjoy your stay in cambridge!