You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Sure, I am very glad to help you in cancelling your reservation.

USER: Thank you.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: May I know your name as I need to check your reservation status in our records to cancel it.

USER: Yes, I am Laura Walker here.

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

USER: Ok, not a problem.

ASSISTANT: Thank you for reaching us. Have a great day.

USER: Thank you for your information.