You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Katherine Moore.

ASSISTANT: How can I help you?

USER: I want to cancel my recent reservation, due to health issue. Can you help me out?

ASSISTANT: Ok. Sure, we will help you.

USER: Thank you.

ASSISTANT: Please, wait for a while.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: There is no reservation found on your name to proceed for cancellation.

USER: Not an issue.

ASSISTANT: Thank you for opting us.

USER: Thank you for quick response.