Hi. I am Samuel Miller.
Hello. How may I support you today?
  I want to make my flight reservation from ORD to DCA. Can you please help me?
Sure, we are glad to assist you in booking. Do you have any specific depart and arrival time for this trip?
I would like to return at morning.
 May I know if you prefer to have any other comforts in your journey?
I need a connecting flight.
Can you please share your journey dates that you prefer to travel?
My travel dates are 05/14 and 05/16.
Ok, please wait a moment.
Ok.
Thank you for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.
Oh! Sad to hear that. Anyway, I will find another alternative to go there.
Thank you for choosing us.