You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is Stephanie Lee. I want to cancel my reservation due to cancel of my conference.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: No problem, thank you for your service.

ASSISTANT: Thanks for connecting us, have a nice day.