You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to cancel my reservation as my plan to reach New York is cancelled. Can you cancel my reservation?

ASSISTANT: Sure, may I know your name?

USER: My name is Joshua Brown.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a reservation on your name and cancelled it successfully.

USER: Ok, thank you for your service.

ASSISTANT: Thank you for choosing us.