You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Brain Wilson.

ASSISTANT: How may I guide you?

USER: I would like to cancel my active reservation due to some personal issues, will you help me with that?

ASSISTANT: Sure Wilson, I will help for you.

USER: Ok.

ASSISTANT: Wilson, sorry no reservation are found on your name in our database.

USER: Ok, not an issue.

ASSISTANT: Thank you Wilson for contacting our agency.

USER: Thank you for your information.