Hello.
Hello. How may I help you today?
I need a flight ticket from BOS to DFW to meet my sister, can you reserve a flight ticket for my journey?
Ok, I am here to help you with that. Can I know your planned trip dates?
Thank you and my planned dates that I want to move is on Mar 19 and  will return on Mar 21.
May I know your name?
Sure, my name is Dorothy Davis.
Do you have any other requirements?
I am looking for a single stop flight.
Ok, wait for a minute.
Sure, I can wait for your response.
We are regret to inform you that, there are no flights available based your travelling dates.
Ok, no problem with that one.
Thank you for approaching us. Have a nice day.