You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, I am happy to help you with that. Can I have your  good  name  please to check  your  reservation status?

USER: My name is Rebecca Lopez.

ASSISTANT: Ok,  please wait a  moment.

USER: Sure.

ASSISTANT: Sorry to inform you that  no reservation  has found under your name to cancel.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for choosing us, have a  good day.