You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Donna Wright. I need to cancel my reservation due to my planned event got cancelled so please help me with that.

ASSISTANT: Sure Donna, I am here to help you with this.

USER: Thank you.

ASSISTANT: Sorry Donna, there is no reservation found under your name to cancel it.

USER: It's ok fine, no problem. Anyway, thank you for your time.

ASSISTANT: You are welcome.