Hello,. I am Ruth Garcia.
user
Hello, how may I assist you?
assistant
 I want to attend Steampunk festivals at Chicago with the fare of 200. Can you please help me in booking a flight ticket?
user
Sure, may I know your travel dates?
assistant
I want to travel on 03/21, and need to catch return flight on 03/23.
user
Please share me your airport codes?
assistant
 I need to leave from my nearest airport IAD to reach ORD.
user
Sorry there is no flight on your route.
assistant
Ok, no issues. Thanks for the information.
user
Thank you.
assistant