You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT:  Just a moment please.

USER: Sure.

ASSISTANT: may I know your name please?

USER: Sure, I am Linda Harris.

ASSISTANT: I am sorry no reservation found on your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.