Hi.
user
Hello.
assistant
I am Edwards Roberts.
user
How can I assist you today?
assistant
I would like to book a flight ticket from DCA to attend a robotic workshop at ORD, can you help me to book an economy class ticket?
user
Sure, I can help you in that. May I know your planned travel dates please?
assistant
My travelling dates are 12/27 and 12/29.
user
Do you have any other specifications?
assistant
I need a connecting flight.
user
Ok, please wait for a while.
assistant
      Ok.
user
Sorry to inform you that there are no flights available for you on those dates.
assistant
That's ok, thank you for the response.
user
Thank you for choosing us, have a great day.
assistant