Yes, hi. I am looking for a train to get me out of Cambridge to someplace fun. Can you help me with that?
Of course! Do you know your destination?
Yes, I would like to go to Peterborough. I want to travel on Friday and get there by 21:30.
Is there a time you would like to leave?
I just need to get there by 21:30.
Okay I have a train would you like a ticket to hogwarts?
To Peterborough, please, for 4 people. I need to arrive by 21:30.
I have booked it and the reference is GKJEBZN9.
Thanks, I also need a place to stay in Cambridge. I don't care about free parking, though.
there are so many places. which side do you prefer?
I would like to stay in the south please. 
Rosa's Bed and breakfast is a 4 star guesthouse in the South part of town in the cheap price range including free Internet and parking. 
Thank you. What is the postcode?
The post code is  cb22ha. Can I assist you with anything else?
No thank you! That will be all!
It was a pleasure assisting you today. Good-bye.