You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to cancel my reservation which I have done to spend a free time with my Nephew but unfortunately my sister left that particular place. Will you please help me with that?

ASSISTANT: Sure, may I know your good name please?

USER: Sure, previous reservation should be under the name of Jeffery Lewis.

ASSISTANT: I found a reservation on your name. Shall I proceed to cancel?

USER: Sure, please proceed with cancelling.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us. Have a good day.

USER: Most welcome.