You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: How can I help you?

USER: Thank you.

ASSISTANT: Just a moment please.

USER: Sure.

ASSISTANT: May I know your name please?

USER: Richard Hill.

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

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your information.