Hi. Sarah Hill here.
Hello, how may I guide you?
Can you book a ticket from AUS to DCA?
Sure, can I know your preferable dates?
Ok, here are my preferred travel dates 06/13 and 06/15.
 I found a flight 1020 of Hawaiian airlines matches with your preferences, can I proceed?
Please proceed with it.
Your ticket is booked.
Thank you for the help.
Thank you.