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