I'm looking for a moderate priced place to stay in the north part of town.
Moderately priced options in the north are abundant. Do you have any particular preferences or needs I should enter into the system to narrow it down?
The hotel should be a guesthouse, in the 4 star range
We have plenty of options. Any other preferences?
No. Do you have any suggestions?
I would book from acorn guest house, with 4 stars. Is that okay? 
Yes, that sounds good. Can you book that for Wednesday. I have 2 people and want to stay 3 nights. 
Unfortunately, that booking was unsuccessful. Would you like to try a shorter stay?
Can we try for 2 nights instead. I'll need the reference number too.
The booking was successful. Reference number is : YH1D51ZS. May I help with anything else?
Yes, are there any trains leaving town after 13:45 on Friday?
Where will you be leaving from and going to?
I am leaving from cambridge to bishops stortford.
I have several trains that will work for you. You can arrive as early as 16:07 or as late as 24:07. 
Can I have the train ID and price for the first train after 13:45?
TR2730 is the train ID. May I go ahead and book that for you? 
NO thanks, no need to book for now.   That is all of the info that I need.
Ok great.  Anything else you need?  
Can i have the price as well. 
That trip would be 10.10 pounds per ticket.
Thank you goodbye.
You are welcome, have a great trip.