Hello, Scott Edwards here.
user
Hello,. How can I help you?
assistant
 I would like to visit Library of Congress at Washington, DC - DCA to collect some information from old Newspapers, which helps me to write an Article about corruption. Could you please help me for booking on 01/20?
user
Sure, I am here to help you. May I know your price limit?
assistant
Sure, my budget is up to 1000.
user
When will you return from Washington?
assistant
I have intend to return on 01/22.
user
May I know your boarding point?
assistant
Ok, I am heading from Detroit, MI - DTW.
user
Thanks for providing your details, but there are no flights with your requirement.
assistant
That's Ok, thanks for your help.
user
Thank you for choosing us.
assistant