You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: I am Robert Moore. Can you  please cancel my reservation, due to cancel of my trip with friends?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a reservation on your name. Shall I proceed to cancellation?

USER: Ok, proceed with the cancellation.

ASSISTANT: Your ticket has been cancelled successfully.

USER: Thank you for cancelling my ticket.

ASSISTANT: Thank you for choosing us.