You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am John Robinson. As my meeting was cancelled so I want to cancel my reservation, can you please help me in that?

ASSISTANT: John Robinson, I am glad that you have approached us. How may I assist you with today? Sure, I will help you to cancel your booking. Please allow me a minute while I work on it.

USER: Ok, I will wait for your response.

ASSISTANT: Thank you for your time, I am happy to inform you that I have cancelled you booking.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a great time.