You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: Owning to an emergency, I want to cancel my recent reservation. Can you help me?

ASSISTANT: Sure, I can help you and may I know your name for checking purpose?

USER: Thank you. Yes,  I am Janet Phillips.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no flight ticket found for the user name in our data base to help you in flight ticket cancellation.

USER: That's fine, no problem. Anyway's thank you for your information.

ASSISTANT: You are most welcome and thank you for reaching us.