You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to cancel my recent reservation, due to my seminar has been cancelled. Can you please assist me?

ASSISTANT: Sure, may I know your name to proceed?

USER: My name is John Young.

ASSISTANT: Please wait for a moment to check your details.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found on your name.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for reaching us.