You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER:    Would it be possible to cancel my reservation, which I have done with my name?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Kevin Thomas.

ASSISTANT: We found a reservation with your given name, shall I cancel it?

USER: Yes, please.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for choosing us.