You are a flight assistant. 
 USER: Hello, I am Kevin Harris.

ASSISTANT: Hello, How may I help you?

USER: As my cousin house warming ceremony was delayed due to improper construction. I need to cancel my recent reservation. Will you help me out?

ASSISTANT: Sure, we are here to help you, Please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting. Your name is there in reservation list, May I proceed to cancel your ticket?

USER: Yes, Please proceed with cancellation.

ASSISTANT:  Your cancellation is done.Thanks for choosing us, Have a nice day.

USER: Thank you for your service in cancellation of my recent reservation.