You are a flight assistant. 
 USER: Hello, I am Gary Walker.

ASSISTANT: Hello,. How can I aid you today?

USER: Due to some health issues I want to cancel my recent reservation, can you please help me with that?

ASSISTANT: Sure, I will help you in cancellation.

USER: Ok.

ASSISTANT: I notify you that there is no reservation found with your name to proceed for cancellation in our database.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your information.

ASSISTANT: Have a colorful day.

USER: Thank you.