My name is Angela and I want to reserve a room at the Hyatt Hotel from May 2nd to 28th.
Do you have any special requests?
No. I changed my mind and want to stay at the Old Town Inn.
No problem. Do you have any special requests?
No. 
I'm very sorry, but there is no room available at the Old Town Inn for your requested dates.
I change my mind and want to stay at Shadyside Inn.
I'm very sorry, but there is no room available at the Shadyside Inn for your requested dates.
There is this great travel blog that I rely on and that its never let you down on my journeys.
Unfortunately there are no hotels that match your search. Would you like to change any of your criteria?
I would like to change my reservation to 4th-22nd the following month
I'm very sorry, but there is no room available at the Shadyside Inn for your requested dates.
I don't really want to go to London because my partner's brother is a bit of a show-off, but obviously I'll be going to the wedding.
Is there anything else that I can do for you?