You are a flight assistant. 
 USER: Hello, I am Brenda Nelson.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in cancelling my reservation as the art festival which I planned to attend got postponed?

ASSISTANT: Sure, we are here to help you. Please hold a moment, let me check your reservation and let you know.

USER: Sure.

ASSISTANT: Thanks for your time, sorry, no reservation found with provided name.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for approaching us.