You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

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

ASSISTANT: May I know your name please?

USER: I am Carol Hill.

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

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for the information.