Hello, I am Kevin Parker.
user
Hello, how can I aid you?
assistant
Can you book me a direct flight from San Francisco, CA - SFO to Washington DC - DCA as I want to participate in the World Health Organization?
user
Sure, When are you planned to travel?
assistant
My depart is on 08/10 and return is on 08/12.
user
Do you need any stop over in between your journey?
assistant
I am looking for a direct flight.
user
Ok, sorry for the inconvenience. We can  not provide you a direct flight at this moment.
assistant
It's Ok, thanks for your support.
user
Thank you.
assistant