You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you today?

USER: My name is Lisa Thomas. I want to cancel my reservation, can you please help?

ASSISTANT: Sure, we are here to help you with this. Please hold for a moment, let me check your previous reservation status.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: There is no active reservation with your name in our database to cancel it.

USER: No worries, thank you.

ASSISTANT: Thank you for contacting us, have a great day.