Hello, Edward Jones here.
user
Hello,. How may I serve you?
assistant
I want to attend to my brother's marriage in Atlanta, GA - ATL on 01/09. Can you book a flight ticket for me?
user
Sure provide me your journey dates  and source.
assistant
My source is from Las Vegas, NV - LAS and my return date is 01/11.
user
Sorry, unfortunately there is no flight found matching your details.
assistant
Ok, no problem. Thanks for your information.
user
Thank you for choosing us.
assistant