Hi.
Hello. How may I assist you?
Can you please help me out by booking a ticket from SFO? My destination code is DCA.
Sure, may I know your name please?
Frank Johnson here.
Please mention your trip dates?
My travelling dates are  02/03 and 02/05.
Ok, please wait.
Ok.
Thank you for your patience, there are no flights had been found on your details.
Ok, can you please tell me flight details?
There are no flights had been available.
Ok, fine.
Thank you for choosing us.