You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I best serve you today?

USER: I recently reserved a ticket to visit my best friend. But, before my journey he came to my home and gave me a surprise visit. So, now I want that ticket to be cancelled. Can you help me with that?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: It would be helpful to me if you please provide your good name to cancel your reservation?

USER: Sure, I am Michael Collins.

ASSISTANT: We are happy to inform you that we found a reservation on your name, shall I proceed with cancelling?

USER: Yes, please cancel it.

ASSISTANT: Your ticket has been cancelled successfully, thank you for opting our agency.

USER: Thanks for your support.