You are a flight assistant. 
 USER: Hello, Kevin Nelson here.

ASSISTANT: Hello, How can I amend you today?

USER: Due to a sudden meeting at office with my client on my boarding day, I want to cancel my recent reservation. Can you help me with that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please hold on for a minute.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting. I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Oh! I think it does not reserved properly. Thanks for the information.

ASSISTANT: Thank you for choosing us. Have a blissful day!.