You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Justin Young.

ASSISTANT: How can I aid you at this moment?

USER: I want to cancel my reservation, can you help in that?

ASSISTANT: Sure, I am glad to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry Young, there is no reservation found under name in our database to cancel it.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for reaching us.