I am trying to find when the train is leaving Sunday Cambridge can you help me?
Ok, and where are you heading to? 
I am heading to Ely.
What time do you want to arrive by?
Oh, not Ely, sorry.  I need to leave after 16:00 going to London Liverpool Street.
The earlest I have leaving is train TR7713 at 19:27,will this be okay for you?
That is good, I also need a place to stay with a cheap price and free parking.  
I have several hotels in your price range with free parking, what area would you like?
A guesthouse in the east, please
There are nine I recommend allenbell it's a 4 star guesthouse. Would you like the address and phone number or me to book it for you?