You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Robert Jackson. I want to cancel my recent reservation.

ASSISTANT: OK Robert, please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting Robert. Sorry to say that there is no reservation found under your name.

USER: It's OK. Thank you for your information.

ASSISTANT: Welcome, have a nice day.