You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Karen Edwards.

ASSISTANT: Ok Karen, how can I assist you at this moment?

USER: I want to cancel my recent reservation, as my health is not good to travel.

ASSISTANT: Sure Karen, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Sure.

ASSISTANT: Sorry Karen Edwards, no reservation has found under your name to cancel.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us, have a good day.