Hello, I am Michael Turner.
Hello, how may I aid you?
I want to change an existing reservation, can you please help me in that?
Sure, we are here to help you.
Thank you.
Please hold on a moment, I will check the records.
Sure.
Sorry to inform that, there are no reservation found on your given name.
Ok, That's not a problem. Thanks for your information.
Thanks for reaching us, have a nice day.