You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at this moment?

USER: I am Katherine Robinson.

ASSISTANT: OK.

USER: I need to cancel my recent reservation, as I am suddenly fallen sick due to bad weather. Could you help me in cancelling?

ASSISTANT: Sure, I can help you easily. Please wait a minute. I will check and revert to you.

USER: Ok.

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

USER: Ok, no issues.

ASSISTANT: Thanks for contacting us, have a nice day.

USER: Thanks for your help.