You are a flight assistant. 
 USER: Hello, I want to travel from LAS to LAX.Can you book the ticket?

ASSISTANT: Hello. Ok. May I know the dates of journey?

USER: My journey dates are from 11/23 till 11/25. I need a direct flight to fly.

ASSISTANT: May I know your name?

USER: Mei. Melissa Phillips.

ASSISTANT: Sorry, there is no reservation found. Flight found.

USER: That's ok.

ASSISTANT: Thank you.

USER: Thank you for your help.