Hello.
Hello. How can I assist you at this moment?
I need to travel from BOS to DCA, can you help me in that?
sure, I will help you with that. Can I have your travel dates please?
My trip dates are Nov 15 to 17.
Ok,  please let me know your preferable class.
I am comfortable in any class.
Do you  have any other specifications?
Please ensure that my depart time is in afternoon.
Can I have your good name please?
Brian Phillips here.
Sorry to inform you that no flight is available to you on your planned dates.
Ok, no issues. Thank you for the information.
Thank you for choosing us, have a good day.