You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I provide assistance to you?

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

ASSISTANT: May I know your good name please?

USER: Myself Melissa Hill.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: We found a reservation with your given name and it has been cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.