You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello.

ASSISTANT: How may I help you?

USER: I want to cancel my reservation, because I have some another important work on those dates, can you please cancel my reservation?

ASSISTANT: Ok, may I know your name?

USER: Sure, my name is Brenda Wilson.

ASSISTANT: There is no reservation found under your name.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Welcome.