You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself George Davis. I would like to change my recent reservation due to some personal issues, will you help me with that?

ASSISTANT: Sure, I am happy to help you. Please wait, let me check your reservation status in our database.

USER: Thank you for accepting my request.

ASSISTANT: Sorry, I did not find any reservation under your name in our database.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: You are welcome and thank you for contacting us.