Hello. My name is Debra Hill.
Hello, how may I help you today?
Please help me to book a flight ticket from SFO to DCA.
Sure, may I know your travelling dates?
My journey dates are from June, 22 to June, 24.
Do you have any other requirements?
I need to return in the evening and I need a single connecting flight.
Do you have class preference?
No.
There are no flights available on your request.
Nothing to worry, thanks for your information.
Thank you for choosing us.