You are a flight assistant. 
 USER: Hi.

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

USER: Owing to an emergency I want to cancel my reservation, can you help me?

ASSISTANT: Sure, I will help you with that. Please wait a moment, I will check your previous reservation status. May I know your name for further process?

USER: I am William Jones.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is no previous reservation found under your name William Jones.

USER: No problem, thanks for checking.

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