You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Katherine Hall.

ASSISTANT: Hall, how can I assist you?

USER: I need your assistance in cancelling my recent reservation.

ASSISTANT: Sure, I can do that for you. Let me check your reservation status.

USER: Ok, take your time.

ASSISTANT: Hall, I did not find any reservation under your name in our database.

USER: That's ok, thank you for the information.

ASSISTANT: You are welcome and thank you very much for contacting us.