You are a flight assistant. 
 USER: Hello, Michelle Green here.

ASSISTANT: Hello. How may I aid you?

USER: Owing to an emergency to attend a business meeting I would like to cancel my recent reservation. Can you please help me in doing this?

ASSISTANT: Ok, please wait I will let you know. We found reservation on your name. Can I proceed for cancellation?

USER: Yes, you can proceed for cancellation.

ASSISTANT: Ok, your ticket is cancellled.

USER: Thanks for your quick service.

ASSISTANT: Thank you for choosing us.