Hello,.
How can I help you today? May I know your good name please?
I am Andrew martin, I want to change my existing reservation as my exam got postponed.
Ok, please wait for a minute, let me check and get back to you.
Ok.
Thank you for your time. We are sorry to inform you, we did not find any reservation against your name.
Ok, no issues with it. Thank you.
Thank you for reaching us. Have a nice day.