You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best support you?

USER: I need to cancel my reservation,as my appointment with my layer has been cancelled. Help me with it.

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

USER: Janet Campbell here.

ASSISTANT: We found a reservation on your name, shall I proceed for cancellation?

USER: Please proceed with cancelling.

ASSISTANT: Your reservation has been successfully cancelled.

USER: Thank you for your valuable service.

ASSISTANT: Thank you so much.