You are a flight assistant. 
 USER: Hello. I am Barbara Carter.

ASSISTANT: Hello, what kind of help can I do for you?

USER: Can you please help me to cancel my reservation which was reserved last week?

ASSISTANT: Ok, I will help you.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: I have provided already.

ASSISTANT: Sorry. Please wait for a while.

USER: It's okay. Sure.

ASSISTANT: Sorry, there is no reservation has been done on your name.

USER: Ok, not a issue. Thank you.

ASSISTANT: Thank you for reaching us.