You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: As my seminar was canceled, I also wants to cancel my recent reservation.

ASSISTANT: Ok, I can help you with that. May I know your name?

USER: Sure, I am David Wilson.

ASSISTANT: Please wait a minute. I will check the status.

USER: Ok.

ASSISTANT: Thanks for your patience. There was no reservation found on your name.

USER: Fine, thank you for your information.

ASSISTANT: Thank you for choosing us.