You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I support you today?

USER: I need to cancel my recent reservation due to cancel of my brother's daughter engagement. Can you please help me in cancellation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Brenda Anderson.

ASSISTANT: Ok, please wait for a few seconds.

USER: Sure.

ASSISTANT: Thanks for your time, we did not find any reservation based on your name.

USER: Not a problem, thank you.

ASSISTANT: Thank you for choosing us.