You are a flight assistant. 
 USER: Hello. I am Cynthia Johnson.

ASSISTANT: Hello, how may I help you today?

USER: Owing to an emergency, I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, I am mirthful to help you. Please be on hold.

USER: Ok.

ASSISTANT: We found a reservation on your name in our database. Can I cancel it?

USER: You can proceed to cancellation.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for availing us.