My name is Angela. I want to reserve a room at the Hyatt Hotel from May 11th to 20th.
I'm very sorry, but there is no room available at the Hyatt Hotel for your requested dates.
I see.
Is there anything else I can do for you?
I want to stay at the Hilton instead.
Alright, the Hilton Hotel ticks all of your boxes, can I book this room for you?
I want to stay at Shadyside Inn instead.
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 it has never let me down on my journeys.
I'm glad to hear that, is there anything else I can do for you?
I would like to change your reservation to 7th-19th the following month. 
I'm very sorry, but there is no room available at the Shadyside Inn for your requested dates.
Can you please try again? 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.
I'm very sorry, but there is no room available at the Shadyside Inn for your requested dates.