Hi.
user
Hello. How can I help you?
assistant
Please book a ticket from Washington DC-DCA to Denver, CO-DEN.
user
May I know your travel dates?
assistant
Travel dates are from 02/06 to 02/08.
user
Do you have any preference?
assistant
Price limit 500. Connections limit 1.
user
Sorry to inform you that no connecting flights were available on your travel dates.
assistant
Thanks.
user
May I know your good name for documentation?
assistant
I am Anna Scott.
user
 Thank you for availing us.
assistant