You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am George King, want to change my reservation due to post pone of my shopping. Can you help me with it?

ASSISTANT: Sure. May I know your good name please?

USER: I have already mentioned above.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

ASSISTANT: Thanks for waiting. Unfortunately, there is no reservation found on your given name?

USER: Fine, thanks for the information.

ASSISTANT: Thank you for reaching us.