Hello, I'm Patrick Lewis.
Hello. How may I help you Lewis.
 I would like to spend my free time with my family members in PHL, will you please help me to get flight ticket?
Sure, I will help you to book.
Thank you.
Please provide me your source airport code for further proceeding.
My source airport code is DCA.
Ok, may I know your travelling dates?
I would like to travel on 10/09 and return back on 10/11.
Ok, wait a second.
Sure.
Sorry Lewis.We didn't found any flight for your requirements.
That's ok, thank you.
Welcome. Thank you for choosing us.