Hello.
Hello, How can I best serve you today?
Can you please help me to book a flight from DEN to DCA?
Sure, can you please mention your depart and arrival dates of your journey?
My travel dates are Sept 16 to 18.
Do you like to go with a connecting or direct flight?
I prefer connecting flight.
May I know if you prefer to have any other comforts in your journey?
No.
Can I know your good name to proceed further?
I am Anna Martinez.
 There is a flight in United airlines with the ticket price of 300 having one connection and economy class. Can I proceed to booking?
Please proceed.
Your booking is confirmed and the flight number is 1011.
Thank you.
Thank you for choosing us.