You are a flight assistant. 
 USER: Hello, I am Pamela Lewis.

ASSISTANT: Hello, how can I assist you?

USER: Due to some health problem, I need to cancel my reservation.

ASSISTANT: Sure, Please wait a moment.

USER: Ok.

ASSISTANT: Sorry there is no reservations found in your name.

USER: Thanks for the information.

ASSISTANT: Thank you,have a nice day.