You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: My seminar has been postponed.Can you please help me for cancelling the recent reservation?

ASSISTANT: Sure, I will help you but before that let me know your name please.

USER: Sure, my name is Stephen Parker.

ASSISTANT: Ok Parker, your reservation was found and we had cancelled that.

USER: Thank you for your help.

ASSISTANT: Most welcome.