Hi, I am Dennis Wright.
Hello, how can I aid you?
Can you please help me with booking a flight ticket from AUS to DCA?
Sure, I am here to help you. Can I know when you want to travel?
My travel dates are 08/13 and 08/15.
Ok, please share your fare limit.
Fare limit is 5000.
Wait a minute please.
Ok.
Thank you for waiting, we found a flight with number 1014 and airline UA at a price of 100 with 1 connection.
You can proceed with booking.
Sure, your booking is done.
Thanks for the help.
Thank you for reaching us, have  a nice day.