My name is Alexis. I want to reserve a room at the Hyatt Hotel from May 6th to 19th.
Do you have any customer requests?
I would like to stay at a Hilton hotel instead.
I'm very sorry, but there is no room available at the Hilton Hotel for your requested dates.
goodbye
Thank you and goodbye.
I've changed my mind. I would like to stay at Old Town Inn instead.
Alright, the Old Town Inn ticks all of your boxes, can I book this room for you?
Yes please. There is this great travel blog that I rely on. It has never let me down on my journeys.
OK, I've successfully completed this Hotel booking for you!
I would like to change my reservation to 2nd-21st of June.
Alright, the Old Town Inn ticks all of your boxes, can I book this room for you?
Yes. 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. 
OK, I've successfully completed this Hotel booking for you!