Hello.
Hello,. How can I provide service to you?
 I am Gregory Young want to change my reservation due to prepone of my meeting. can you please help me with it?
Sure, I would be happy to help you.
Ok.
Please wait, let me check your reservation status.
Ok.
Thanks for waiting. Sorry Gregory Young, there is no active reservation on your name to change it.
Thank you for your help.
Thanks for approaching us.