You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I provide assistance to you? May I know your good name please?

USER: I am Donna Baker, I want to cancel my recent reservation as my interview got postponed.

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: We are sorry to notify that, we did not find any reservation against your name.

USER: No issues, Thank you.

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