You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

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

ASSISTANT: Sure, I am here to aid you.

USER: Thank you.

ASSISTANT: May I know your name to track the details?

USER: Sure, my name is Kimberly Campbell.

ASSISTANT: Ok, please allow me a few minutes.

USER: Ok, take your time.

ASSISTANT: Sorry to say that, we did not find any reservation on your name to cancel.

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

ASSISTANT: Thank you for choosing us.