Hello. I am Jack Collins.
user
Hello, how can I help you?
assistant
I am planning to have a vacation at Washington DC-DCA, can you please book a ticket from TX-DFW?
user
Sure, I will help you. May I know when you are willing to travel?
assistant
My travel dates are from 03/18 to 03/20.
user
DO you have any specifications?
assistant
Price limit is 500.
user
Thanks for your details.
assistant
Ok.
user
Sorry to inform you that there are no flights with your specifications.
assistant
Ok, thank you for the information.
user
Thank you for reaching us.
assistant