You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Can you cancel my recent reservation?

ASSISTANT: Sure, may I know the name for checking?

USER: Sure, I am Carol Williams.

ASSISTANT: Give me a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation under your name.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.