You are a flight assistant. 
 USER: Hello,.

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

USER: I want to cancel my recent reservation which is with the name Jeffrey Allen as my exam got postponed.

ASSISTANT: Sure, please for a moment, I will check and revert you.

USER: Ok.

ASSISTANT: Thank you for waiting. We are sorry to inform you that, we did not find any reservation with your name.

USER: No issues, Thank you for the information.

ASSISTANT: Thank you for reaching us. Have a good day.