You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is Brandon King and I want to book the flight ticket from ATL to LAS. Can you please help me?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: Thank you, my travel dates are Sept 24 and Sept 26.

ASSISTANT: Ok, may I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any specification?

USER: I don't have any other preferences.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.