You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Myself Brian Perez. I made a reservation to attend my friend's marriage, but it was cancelled for some reasons. So, help me in cancellation of my reservation.

ASSISTANT: Sure, give me a minute. I will check and get back to you.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting. Unfortunately we didn't found any reservation according to your name.

USER: Ok. Thank you for your information.

ASSISTANT: Thank you for consulting us.