You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ryan Davis here.

ASSISTANT: Davis, how can I assist you?

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

ASSISTANT: Sure, I will help you. Let me check your reservation status.

USER: Sure.

ASSISTANT: Sorry Davis, there is no reservation found on your name in our database.

USER: No problem, thank you.

ASSISTANT: You are welcome and thank you for choosing us.