You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you at this moment?

USER: Can you help me to cancel the reservation I did recently?

ASSISTANT: Can I have your name?

USER: Myself Katherine Edwards.

ASSISTANT: Sure, I will help you. Please wait for a moment. Sorry, there is no reservation existing on your name.

USER: That is ok, thank you for assisting me.

ASSISTANT: You are welcome, have a nice day.