You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Katherine Miller.

ASSISTANT: How may I help you?

USER: Can you please help me with cancelling my reservation?

ASSISTANT: Ok Katherine Miller, please hold on a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for your time Katherine Miller, there is no reservation found in our database.

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

ASSISTANT: Welcome Katherine Miller, have a good day.