Hello, I am Christopher Miller.
user
Hello, how may I serve you today?
assistant
I am planning to visit National Book Festival at Washington, DC-DCA, can you please book a flight ticket?
user
Sure, please share your source point.
assistant
My origin is Houston, TX-HOU.
user
Ok, also provide your price limit.
assistant
I need a flight ticket within price of 500.
user
can you please share your journey dates?
assistant
My travelling dates are from 11/16 to 11/18.
user
Ok, please stand by.
assistant
Ok.
user
Thank you, sorry no flight found with your details.
assistant
Ok, no problem.
user
Have a nice day.
assistant