Hello, my name is Carolyn Anderson.
user
Hello, how may I be your helping hand today?
assistant
I am planning to celebrate story telling festivals with my family members at San Francisco, SFO. So please help me in booking a flight ticket within fare of 200?
user
Sure,  we are glad to help you.
assistant
Thank you.
user
Can you please provide your take off airport code?
assistant
Washington, DC-DCA is my takeoff airport code.
user
When would you like to make your journey?
assistant
My schedule dates are from 11/19 to 11/21.
user
Thank you for sharing your details, please wait for a while, let me search a flight for you.
assistant
Sure.
user
Thank you for your patience. We are sorry to notify that, we did not find any flights matching your specifications.
assistant
Ok, not a problem. Thanks for your kind information.
user
Thank you for connecting with us, Have a good day.
assistant