You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, can I know your name please?

USER: Myself Cynthia Taylor.

ASSISTANT: I am sorry Taylor, I didn't find any reservation regarding your details.

USER: Oh! that is fine. Thank you for your quick response.

ASSISTANT: Your welcome.