Hello, Sandra White here.
Hello Sandra, how can I aid you today?
I want to meet my school friend at Dallas, can you please help me to book my flight ticket from AUS to DFW?
Please may I know your planned dates of trip?
Sure, I will depart on 06/21 and return back on 06/23.
Ok, give me a minute.
Sure.
Sorry Sandra,  no flights are available for you.
That's fine, I will find an other way. Thank you for the information.
Most welcome, have a nice day.