You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How may I support you?

USER: I am Ronald Nelson.

ASSISTANT: Ok.

USER: Owing to emergency I want to cancel my recent reservation. Can you help me with that?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we are sorry to inform you that, there is no active reservation on your name to cancel.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for opting us.