You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my recent reservation due to sudden postpone of my exams. Can you help me in doing that?

ASSISTANT: Sure I will help you. May I know your name?

USER: Thank you. I am Katherine Brown.

ASSISTANT: Thanks for providing your name, please stand by. We found a reservation on your name and cancelled it successfully.

USER: Thank you.

ASSISTANT: Thanks for approaching us.