You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I would like to change my reservation due to bad weather condition at my destination location, can you please help me out with that?

ASSISTANT: Sure, May I know your name?

USER: Thank you for accepting my request. Myself Jeffrey Allen.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: Ok, no problem. Anyway thank you for checking out.

ASSISTANT: Thank you for opting us.