Hi. I am Deborah Robinson.
Hello, How can I help you?
 I want to book a flight ticket on 05/18 and return on 05/20, so can you help me with booking please?
Sure, Please help me with your travel dates.
I have mentioned above.
Sorry, Please help me with your journey codes.
My airport codes are Austin, TX-AUS and Washington, DC-DCA.
Please wait a minute.
Ok.
Sorry, No flights found with your chosen dates.
That's ok. Thank you for the response.
Thank you for reaching us.