You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today? May I know your name please?

USER: My name is Kenneth Walker.

ASSISTANT: Thank you for providing your name?

USER: I planned to attend my friend marriage, But my leave got cancel by my boss. Can you cancel my recent reservation?

ASSISTANT: Sure, please wait a couple of minutes, I will check and get back to you.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting, sorry to inform you that, there is no reservation against your name.

USER: Ok, No issue.

ASSISTANT: Thank you for connecting with us. Have a nice day.

USER: Thank you for the confirmation.