You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: I am an event organiser and we were planned to do an event, but suddenly it got cancelled, so I would like to cancel my plane ticket. Can you help me?

ASSISTANT: Sure, I will help you with that. Can you please provide your name so that I can check is there any reservations under your name?

USER: Thank you for considering it and my name is Donna Nelson you can with that one.

ASSISTANT: Sorry Donna, I have not find any reservations under your name to cancel.

USER: Ok, I think it might be cancelled by my father, thank you for your help.

ASSISTANT: Thank you for opting our service.

USER: Welcome.