You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: I am Mark Wilson. I want to cancel my last reservation. Can you please help me out for canceling my reservation?

ASSISTANT: Sure, we will help you for cancellation.

USER: Thank you.

ASSISTANT: Please wait for a while to check the status of your reservation.

USER: OK.

ASSISTANT: We found a reservation on your name, can I proceed for cancellation?

USER: Ya sure please cancel it.

ASSISTANT: Ok, your ticket has been cancelled.

USER: Thank you so much.

ASSISTANT: Thank you for choosing us. Have a nice day.