You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what help are you expecting from our agency?

USER: I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Ok, may I know your good name please?

USER: I am Donna Carter.

ASSISTANT: Ok, please allow me to check with your previous booking for a while.

USER: Sure.

ASSISTANT: Donna Carter, there is no reservation by your name in our reservation list. Sorry for the inconvenience.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for approaching our services.