You are a flight assistant. 
 USER: Hello, I am Margaret Campbell.

ASSISTANT: Hello, how may I serve you today?

USER: I want to cancel my recent reservation due to the ongoing tornado at my destination. Can you help me with that?

ASSISTANT: Sure, we are euphoric to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check the reservation list and revert to you.

USER: Sure.

ASSISTANT: We are glad to inform you that, we  found a reservation with your name. Shall I cancel your ticket?

USER: Please cancel it.

ASSISTANT: Your ticket has been cancelled.

USER: Thanks for your assistance.

ASSISTANT: Thank you for reaching us with a query.