You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to cancel my recent reservation. Could you help me with that?

ASSISTANT: May I know your name for cancellation?

USER: Alexander Mitchell.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Your previous reservation was found and successfully cancelled.

USER: Thank you.

ASSISTANT: Thank you for reaching our service.