Hello.
Hello. How may I aid you today?
Will you please help me with booking a flight ticket from DFW to DCA?
Sure, I am glad to help you with that. Can you please provide your travelling dates?
My planned travel dates are from Dec 24 to Dec 26.
On whose name I have to book the flight ticket?
Ok, you can book this ticket in the name of Sharon Scott.
Are you ok with connecting flight?
Yes, I am looking for a  connecting flight in my journey.
Any other specifications do you have?
I would prefer not to fly a low-cost airlines.
Please wait a moment to check the flights.
Sure, I will wait for your response.
We regret to inform you that, only low-cost airlines are available for your journey with your requested dates of travelling.
Ok, but I need a normal cost Airlines. Thank you for the information.
Sorry, no flights are available. Thank you for reaching us.