Hi, I am trying to plan a trip and need some help with a train.  I'm not familiar with trains at all unfortunately.
Don't worry, I should be able to help you. Do you know which station you'll be leaving from or going to?
I'm departing from leicester and I need to leave on friday.  Thank you for helping!
What is your destination?
I'm going to Cambridge. 
Is there a time you would like to arrive by?
11 pm and I want it for three people
TR6539 will arrive by 22:54. Booking was successful, the total fee is 113.4 GBP payable at the station. Your reference number is IE5RK2IG. Do you need anything else?
I also need a place to stay.
We have many great places to stay. What area would you like and do you have a price range?