You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Patrick Nelson. I need to cancel my reservation due to my planned event got cancelled. So please help me with cancelling my reservation.

ASSISTANT: Sure, I will try to help in cancelling your ticket, please wait for a minute.

USER: Thank you for accepting my request. I will wait for your response.

ASSISTANT: Thanks for your waiting, I could not find any reservation with your name in our database.

USER: Oh! It may not be booked properly due to server issues. Anyway, thank you for your time.

ASSISTANT: Thanks for choosing us, have a great day.