You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Katherine Evans.

ASSISTANT: How may I assist you now?

USER: Can you help me in cancelling my recent reservation?

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Katherine Evans, there is no reservation by your name. THank you for choosing us.

USER: Its ok, thank you.

ASSISTANT: Most welcome.