Hi, my name is Charles Hall.
user
Hello. How can I aid you?
assistant
I am heading from SFO to attend a film festival at Washington. So, can you help me in booking a flight ticket on 03/03?
user
Do you have any connection limit?
assistant
I need one connection.
user
May I Know your landing  point?
assistant
My journey is to DCA.
user
when you want to return?
assistant
I need to return on 03/05.
user
Please wait a while.
assistant
Sure.
user
Unfortunately, there are no flights found according to your specifications.
assistant
Ok, thank you for your assistance.
user
Thank you for choosing us.
assistant