You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Brian Evans.

ASSISTANT: Yes, Evans.

USER: Acually, I have booked a ticket to NYC to attend a meeting, but the meeting is cancelled due to some reasons.

ASSISTANT: So, you want me to cancel your ticket or modify it?

USER: Please cancel the reservation.

ASSISTANT: Please wait a moment, let me check your reservation on your name.

USER: Sure.

ASSISTANT: Sorry Evans, here I didn't find any reservation on your name.

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your time.