You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carolyn Carter.

ASSISTANT: May I know, How can I be your helping hand?

USER: I need to cancel my recent reservation, as I am suddenly fallen sick. Please help me in cancelling?

ASSISTANT: Sure, I can help you in that. Please wait for a while.

USER: Ok.

ASSISTANT: Sorry Carolyn Carter, there is no active reservation on your name to cancel it.

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

ASSISTANT: Thanks for approaching us.