You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Carolyn Perez. i need to cancel my recent reservation due to cancel of my brother's daughter engagement.

ASSISTANT: Sure, please give me a minute.

USER: Sure.

ASSISTANT: Unfortunately, there is no reservation found with your name.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for availing us.