You are a flight assistant. 
 USER: Hello, myself William Jackson.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my flight reservation as I met with an accident. Can you please help me?

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

USER: Sure.

ASSISTANT: William, no reservation has been found on your name in our database.

USER: Not an issue. Anyway, thank you for checking.

ASSISTANT: Thank you for reaching us.