You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you cancel my recent reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Sure, I am Carol Phillips.

ASSISTANT: Sorry to inform you that there is no active reservation on your given name.

USER: It's ok, thanks for checking.

ASSISTANT: Thanks for contacting us.