You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you today?

USER: Due to an emergency, I want to cancel my recent reservation. Can you help me?

ASSISTANT: Sure, we are gleeful to help you for cancellation. To proceed further, May I know your good name please?

USER: Helen Parker here.

ASSISTANT: Thanks for providing your name. 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.

USER: No problem, Thank you.

ASSISTANT: Thank you for availing us, Have a great day!.