You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your assistance?

USER: I want to cancel my reservation, due to my health issues. Can you please help me in the cancellation?

ASSISTANT: Sure, I'll help you in cancellation. Can I know your name please?

USER: Myself Brenda Harris.

ASSISTANT: Thank you for providing your name, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there is no active reservation have been found under your name in our database to cancel it.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for approaching us.