I am looking for information in Cambridge
What do you want to know ?
I should have told you that already, I apologize.  I need to take a train from cambridge to london kings cross, on thursday leaving after 15:00.
There are trains meeting those requirements leaving at 15:00, 17:00, 19:00, 21:00, 23:00. They all take 51 minutes and cost 23.60 pounds.
I think I want the one leaving at 17:00. What's the train ID for that one?
The train ID is TR1791 would you like me to book a seat? Is there anything else I can help you with today?
Is there any architecture attraction in the city Centre? 
There are 5 great places to visit in the centre. My favorite is All Saints Church, would you like the address?
Can you just give me the postcode for that one please?
The postcode is cb58bs. Will that be all?
That will indeed be all for me today. Thank you! Bye
You are very welcome.  Have a nice day.