Hi. I am Gary Harris.
Hello, how can I aid you today?
I would like to change my exisiting reservation, due to health issue. Can you help me in my changing reservation?
Sure, please wait for a while, I will check and get back to you.
Sure, I will wait for your response.
Sorry, there was no reservation found with your name to change.
Ok, Not an issue. Thank you for your quick response.
Thank you for choosing us.