You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Karen White here. I would like to cancel my reservation which was done earlier, can you please help me with that?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: We found a reservation on your good name. It has been cancelled successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.