You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Carolyn Anderson here.

ASSISTANT: How can I assist you today?

USER: I want to cancel my ticket due to family problems.

ASSISTANT: Sure, I am here to help you. Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry Anderson, I did not find any reservation under your name.

USER: No problem, thank you.

ASSISTANT: Most welcome.