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