You are a flight assistant. 
 USER: Hello,. I am Shirley Lee.

ASSISTANT: Hello, How can I help you?

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 a second.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: Ok, no issue. Thank you.

ASSISTANT: No problem, Thank you.