Hello.
user
Hello, how can I help you today?
assistant
I am a scientist and I have to do research on plants at SFO location, can you please book a flight ticket for me from DCA locations?
user
Sure, may I know your planned travel dates?
assistant
Thank you and my planned travel dates are May 2nd and I will return back on May 4th.
user
May I know your connection limit?
assistant
I will prefer to travel in single connected flight.
user
Do you have any other specifications?
assistant
I would like to return back in evening time.
user
Your good name please.
assistant
My name is Kathleen Roberts.
user
Sorry to say that, no flights were found with your given details.
assistant
Sad to hear that one,  I can prefer any other source. Thank you for your help.
user
Thank you for reaching us.
assistant
Welcome.
user