Hello, I am Anna Robinson.
Hello, How may  I help you?
I have planned for a holiday trip at Washington, DC - DCA on 08/22. I want to reserve a ticket from Austin, TX - AUS on 08/20.
Could you please wait for a while,  I will check and get back to you.
Sure.
Thank you for your patient. There are no flights found according to your requests.
OK, Thank you.
Thank you for choosing us.