You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I aid you today?

USER: I am Samuel Taylor.

ASSISTANT: Ok.

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

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation found with your name.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for opting us.