Hello.
Hello, How can I serve you?
I am Dennis Lewis. I want to book a  flight ticket from Washington DC-IAD. Can you please help me in doing that?
Sure, May I know the destination code?
My destination airport code is New York, NY-LGA.
Please help me with your travel dates.
My depart date is 11/03 and return date is 11/05.
Please wait a minute.
Sure.
Sorry, No flights found with your chosen dates.
Ok, no issues.
Thank you for opting us.