You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Owing to an emergency, I just want to cancel my recent reservation. Can you please assist me?

ASSISTANT: Sure, I am here to help you out.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Larry Taylor is my name.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Larry Taylor, we haven't found any reservation under your name in our database.

USER: Ok, thank you.

ASSISTANT: Thank you for choosing us.