You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER:  Owing to an emergency, my planned to Sky diving with friends has been cancelled. Can you help me in cancellation?

ASSISTANT: Sure, we are gleeful to help you for cancellation.

USER: Thank you.

ASSISTANT: May I know your name to check your details in our database?

USER: Betty Lewis, is my name.

ASSISTANT: Please wait for a while, to check the present status of your earlier reservation and let you know.

USER: Sure.

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.

ASSISTANT: Thank you for reaching us.

USER: Thank you for giving instant service without any delay.