Hello.
Hello. How may I help you?
I am planning a trip to Washington city, can you please book me a ticket from HOU to DCA?
On which date you like to travel?
My preferable journey dates are from 10/08 to 10/10.
May I know  your name pleas?
My name is Charles Robinson.
I am sorry no flights found on your dates.
Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.
Thank you for choosing us.