You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my reservation which is done recently, can you please help me?

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Sure, my name is Cynthia White.

ASSISTANT: Wait a moment please.

USER: Sure, I will wait.

ASSISTANT: Cynthia White, we regret to inform you that there is no reservation found on your name in our records.

USER: Ok, that's fine.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your service.