Hi, I'm looking for a train for my upcoming trip to Cambridge.  Can you help me find one?
I am happy to help, where are you coming from and on what day?
I am departing from Bishops Stortfod on Friday. I can leave after 9:45
There is an 11:29 that will arrive by 12:07 for 10.10 pounds.  Does that sound good? 
I need the train ID
The Train ID is TR6834.
Thank you  I was also hoping to find a british place to eat in the centre. 
I have about 7 different places that serve british food. I have mostly expensive and moderately priced places. Do you have a preference? 
Lets do a moderate one. Which would you recommend?
I would recommend the the oak bistro, which is located at 6 Lensfield Road. Would you be interested in making a reservation?
Yes, please. I need the reservation to be for 5 people at 21:00 on Friday. 
Can you book it for me and get a reference number ?