You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I'm Sandra Moore. I had planned out for a vacation, but unfortunately it has been cancelled.can you help me in cancelling my recent reservation?

ASSISTANT: Sure Sandra, hold on for a moment. I'm sorry Sandra, there are no reservations on your name.

USER: Ok.

ASSISTANT: Thank you, have a good day.

USER: Anyway thank you for your help.