Hello. I am Thomas Brown.
user
Hello, how can I help you today?
assistant
Can you please aid me with booking a flight ticket within price 200 to Washington?
user
Sure, may I know your travelling dates?
assistant
I would like to go on 02/28 and intend to back on 03/01.
user
Could you please share your source and destination airport codes?
assistant
My preferable airport codes are from ORD to IAD.
user
Ok, please wait for a moment.
assistant
Ok.
user
Sorry, there are no flights found with your given dates.
assistant
No problem, thank you.
user
Thank you for opting us.
assistant