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