Hello.
Hello, how may I aid you today?
I am Raymond Adams. I want to change my existing reservation due to postpone of my exams, can you help me with that?
Sure, I am here to solve your problem. Please allow me a moment to check whether any reservation is found on your name or not.
Sure, take your time.
Sorry  Raymond Adams, there is no reservation found on your name in our database.
That's ok, no problem. Thank you.
Thank you for reaching us.