I need  a train on Friday.
Okay. What day would you like to travel? What time would you like to leave? Where are you departing from and what is the destination please?
I am going to cambridge coming from london kings cross.  I will be leaving on friday after 16:30.
OK, the earliest departure I have is 17:17. Would you like to book it?
How much is a ticket?
I do not have that information available.
Can I at least get the train ID?
They system is down please try again later.
Please inform me of the train ID and price when the system is available. I am also looking for entertainment in the centre.
I have TR0835 leaving at 17:17 and arriving at 18:08. That has a travel time of 51 minutes and a price of 23.60 pounds. 
I want an entertainment attraction in the center part of town also thanks. 
little saint mary's church offers architecture and is located at little saint mary's lane. Entrance fee is free