You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Ronald Davis. Owing for an emergency, I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, please wait a moment.

USER: Sure, take your time.

ASSISTANT: No reservation found on your name Ronald Davis.

USER: Sure, thank you for checking.

ASSISTANT: You are welcome.