You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I am Katherine Edwards, can you help me in ticket cancellation?

ASSISTANT: Sure, I will help you with that.

USER: Thanks.

ASSISTANT: Please wait a moment, I will check your reservation status.

USER: Ok.

ASSISTANT: There is no previous reservation available in your name Katherine Edwards.

USER: That's fine, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.