You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Myself Charles Rodriguez. My health is not good to travel, so I just want to cancel my recent reservation.

ASSISTANT: Sure, please wait a moment. Sorry, there is no reservation found on your name.

USER: Ok, that's fine.

ASSISTANT: Thank you for consulting us.

USER: Thank you for you services.