Hi.
Hello, how may I help you for this moment?
I want to change my reservation, can you help me?
Sure, I will help you with this. May I know your name please for further process?
Myself Andrew Clark.
Ok, please wait for a moment.
Ok.
Sorry Clark, there is no reservation found as per your name to change your reservation in your database.
No problem, thanks for checking.
You are welcome.