Hello.
user
Hello. How  may I help you at this moment?
assistant
Please help me in reserving a flight ticket to write my semester exam in DCA, can you find a flight from ORD?
user
Sure, I am here to help you.
assistant
Thank you.
user
Please mention your trip dates to check the flights?
assistant
The exam is in between these dates, so I want to move on 08/21 and back on 08/23.
user
Thank you for providing, please give me a moment.
assistant
Sure, go ahead.
user
Please let me know your name for documentation purpose.
assistant
Sure, my name is Jacob Robinson.
user
Sorry Jacob, there are no flights running in this route.
assistant
Sad to hear that one, I can reach other booking agencies to reserve my plane ticket. Thank you for your search and your help.
user
Sorry for the  trouble caused to you. Have a nice day.
assistant