You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for today?

USER: I want to cancel my recently done reservation, because of cancellation of my political meeting. Can you please help me in this?

ASSISTANT: Sure, I will help you. May I know your name please?

USER: Sure, I'm Justin Hall here.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry Justin, no reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Do you want any help?

USER: No.

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

USER: Thank you.

ASSISTANT: You are welcome.