You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Rebecca Roberts here.

ASSISTANT: How can I help you at this moment?

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

ASSISTANT: Sure. I will help you with that. Please wait a moment, I will check your previous reservation status.

USER: Sure.

ASSISTANT: There is no previous reservation available under your name.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.