Hello, I'd like some information on a train going to london liverpool street that arrives by 16:00
There are multiple trains. Where will you departing from and what day will you be traveling?
I'm departing on sunday.
The TR2141 leaves Cambridge at 13:59 on Sunday and arrives at London Liverpool Street at 15:27. Is that the train you need?
What is the total travel time?
The trip will take 88 minutes. Would you like me to make a reservation? 
No,I am  also looking for a place to dine. The restaurant should serve British food and should be in the moderate price range
There are several restaurants that serve british food.  Would you prefer a restaurant in the centre or the west?
I just need it to be moderately priced so I can make a reservation.
Restaurant One Seven is moderately priced. Would you like me to make a reservation?