You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Brian Perez.

ASSISTANT: How can I assist you?

USER: I want to cancel my reservation as I met with an accident, can you please do that for me?

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Sure.

ASSISTANT: Give me a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry, there is no reservation found on your name to cancel.

USER: Not an issue, thank you for checking.

ASSISTANT: Welcome, have a nice day.