You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Due to some health issues, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: Thank you. My name is Frank Hernandez.

ASSISTANT: Ok, please wait for a mean while.

USER: Sure.

ASSISTANT: Sorry Frank, there is no reservation found as per your name to cancel your reservation.

USER: Ok, thank you for your information.

ASSISTANT: You are welcome and have a great day.