You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: As my plan to celebrate my sister's birthday got cancelled, I need your assistance in cancelling my earlier reservation.

ASSISTANT: Ok, please give me a minute. May I know your name?

USER: I am Virginia Brown.

ASSISTANT: There is no reservation found on your specified name.

USER: It's ok. Thank you for the information.

ASSISTANT: Thanks for availing us.