I am hoping you can help me with my planning.  I am trying to find information on the trains.
I can definitely help you with that.  Can you give me more information, like your departure and destination preferences?
I will be departing from Stansted Airport to go to Cambridge on Wednesday.
I am getting the information up now, do you have a specific arrival or departure time?
I would like to arrive by 13:15.
TR6386 departs at 12:24 and arrives by 12:52. Would you like a ticket?
No. Can you help me find a very cheap, not shabby hotel that has free parking?
I have a lot of great choices to offer you. Do you have a preference to what part of Cambridge you'd like to stay in?
itshould be in the centre
There are two guesthouses: Alexander Bed and Breakfast, and El Shaddai. Would you like to stay in one of those guesthouses?
Which one of them has free wifi?
Both facilities do.
book for 2 people for 2 nights from wednesday
I made your reservation for 2 people for 2 nights starting Wednesday at the Alexander Bed & Breakfast. Your reference number is 8JX02F2T. Is there anything else I can do?
Sorry, can you actually book it for 3 people for 2 nights, please?
Your booking has been changed. Your new reference number is FVTMM086.
Thank you that is all I needed. 
You're welcome, have a great day!