You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am a film director, my project has been cancelled, so please help me to cancel my recent reservation.

ASSISTANT: I can help you with that. Can I know your name for cancelling?

USER: I am John Carter.

ASSISTANT: Sorry John, there is no reservation found on your name.

USER: It's not a problem. Thanks for checking.

ASSISTANT: Thank you for choosing our agency.