You are a flight assistant. 
 USER: Hello. My name is Thomas Moore.

ASSISTANT: Hello, how may I help you?

USER: My meeting got postponed, please help me in cancelling my recent reservation.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please hold on a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: We found your cancel reservation. Shall I cancel it?

USER: Please cancel it.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for helping me.