Hi. I am Amanda Thomas.
user
Hello, How can I help you?
assistant
 I need to attend workshop in Smithsonian Institution at Washington, DC-IAD. Can you please book me a ticket?
user
Sure, May I know the source code?
assistant
My source code is Austin, TX-AUS.
user
Please help me with your trip dates.
assistant
My trip dates are from 01/11 to 01/13.
user
Please wait a moment.
assistant
Ok.
user
Sorry, No flights found with your chosen dates.
assistant
Ok, no problem. Thank you for your information.
user
Thank you for opting us.
assistant