You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Lisa Moore.

ASSISTANT: How can I assist you for the day?

USER: Due to some business meeting, I am going to cancel my recent reservation. Can you please help me with that?

ASSISTANT: Sure Lisa Moore, I will help you with that cancellation.

USER: Sure, I will wait for your response.

ASSISTANT: Give a moment, let me check the previous reservation status on your name. Sorry to tell you, there is no reservation found with your name in our database.

USER: Not a big problem, anyhow thank you very much for your service.

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