You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you today?

USER:  I am Stephanie Carter want to cancel my reservation due to heavy sand storm.

ASSISTANT: Sure, we are gleeful to help you for cancellation. Please wait a while.

USER: Ok.

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

USER: Thank you for providing information.