You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Justin Wright, I want to cancel my reservation which I have done before.

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

USER: Thank you. Ok, sure.

ASSISTANT: Sorry to inform you that, there is no reservation with your name in our records.

USER: Not an issue, anyway thank you for the help.

ASSISTANT: Thank you for reaching us, have a great day.