You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Owning to an emergency, I want to cancel my recent reservation?

ASSISTANT: I am happy to help you, may I know your name please?

USER: Thank you, my name is Katherine Carter.

ASSISTANT: Carter, I have not found any reservation by your name.

USER: Ok, no problem.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Thank you for your information.