You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, may I know your name to check your ticket from our database?

USER: Nancy Nelson.

ASSISTANT: We regret to inform you that there is no active reservation found on your name.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for contacting us.