You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel my recent reservation due to some health issues, can you help me in doing that?

ASSISTANT: May I know your good name?

USER: I am Jason Johnson.

ASSISTANT: Please wait.

USER: Sure, take your time.

ASSISTANT: Your reservation has been found, shall I proceed for cancelling?

USER: Please proceed.

ASSISTANT: Your reservation has been cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing our service.