Hi.
Hello, how may I help you today?
I need to change my existing reservation as my exams got postponed, Can you please help me with that?
Sure, I am here to help you with this.
Thank you.
May I know your name please?
Thomas Anderson here.
Please wait for a mean while.
Sure.
Sorry to say, that there is no reservation found as per your name to change it.
Ok, no problem. Thanks for your information.
You are welcome.