Hi,.
Hello,  how may I help you?
As it's science festival please book a ticket from Washington to Denver.
Sure. May I know your good name?
My name is Michelle Phillips.
Let me know your depart and arrival dates.
Journey dates are from 03/23 to 03/25.
Do you prefer direct flight or connecting flight?
I prefer connecting flight.
May I know your boarding and landing points?
Ok. Airport codes are DC-DCA and CO-DEN.
Please, wait.
Sure.
Thank you for being patience, there is no connecting flight available with your given specified dates.
Thanks.
Thank you.