Hi, I am Timothy Thompson.
user
Hello. How may I aid you today?
assistant
 I need to attend workshop in Smithsonian Institution at Washington, DCA.
user
Ok.
assistant
Can you please help me with it?
user
Sure. Please send the travel dates.
assistant
 I want to travel on 12/24, and need to catch return flight on 12/26.
user
Let me know your source point.
assistant
Source point is LAX.
user
Ok. Thanks for sharing your details. We did not find any flight will run on respective dates.
assistant
Ok, no issues. Thanks for the help.
user
Thank you.
assistant