Hello. I am Ruth Wilson.
Hello, how may I help you today?
 I want to visit Coit Tower at CA-SFO. Can you book a ticket from DC-DCA?
Sure, can you please share your trip dates?
My trip dates are 10/15 and 10/17.
Do you need any connection limit?
I need a connecting flight.
Please wait for a while.
Ok.
Sorry, there is no connecting flight found on your given details.
Thank you.
Thanks for choosing us.