Hello.
Hello, how may I help you?
I would like to change my existing reservation, please help me out.
Sure, I am willing to help you for this. May I know your name please?
My name is Stephen Garcia.
Please wait for a while.
Sure, take your time.
Sorry for inconvenience, no reservation is found under your name to change.
Ok, no issues. Thank you for your information.
Thank you very much for approaching our agency.