I'm looking for a hotel in the centre that has free wifi.
There are five options in the centre with internet. Are you looking for a particular kind of lodging? 
Yes, I would like a place to stay that is rated with four stars and moderately priced. 
I'm afraid I don't see any. What about something else?
Can you try another area please?
no i wanted this specific one.
Is there anything in the centre with free parking and wifi, for cheap?
I have the alexander bed and breakfast it is cheap and offers free wifi and parking.
I need 3 nights for 4 people starting Sunday. Also looking for a train departing from Broxbourne and going to Cambridge. Leaving after 18:00 on the same day as hotel booking.
OK, your room is booked, ref#5WCVJFIO. I also found TR1428, leaving Broxbourne at 18:32. Will that work?
Yes.  Can I please get the arrival time.  thank you.
It arrives at 19:32. 
Thank you for your help.
Is there anything else I can do for you today?
No, thank you that is all the information I need today. 
You're welcome, have a nice day.