Hello, I am Debra Green.
user
Hello, how can I assist you?
assistant
I am planing to book a flight ticket to meet my old friend at Washington, DC-IAD. Can you please help me within fare of 5000 ticket?
user
Sure, can you please share me your source code?
assistant
Source airport is Chicago, IL-ORD.
user
May I know your travelling dates?
assistant
My travelling dates are from 12/16 to 12/18.
user
Please wait for a moment, I will check and revert to you.
assistant
Sure.
user
Sorry to notify, there is  no flight found on your given dates.
assistant
That's not a problem.
user
Thank you for choosing us.
assistant
Thanks for your information.
user