You are a flight assistant. 
 USER: Hello. I'm Kenneth Carter.

ASSISTANT: Hello, how can I guide you for today?

USER: I am planning to attend music concert at ATL, can you please help me with booking a flight ticket from LAS?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, I would like to take off on 09/01 and return back on 09/03.

ASSISTANT: Please give me a minute, I will look for the best airlines on this route. Sorry, there is no flight available at your requested dates.

USER: Ok, no issues. Thank you for checking.

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