Hello.
Hello, how may I serve you at this moment?
I want to change my existing reservation, due to some health issue. Can you please help me out?
Sure, we are here to help you.
Thank you.
May  I know your name please?
My name is Jerry Moore.
Ok, please be on hold.
Sure, I will wait for your response.
Sorry, we could not find any reservation on your name.
That's ok, thank you for checking.
Thank you for choosing us.