Hello,.
Hello, how can I assist you  today?
I want to attend my friend marriage in Washington, DC - DCA, will you help me in booking flight?
Sure, may I know the journey dates and your preferences?
My source from Philadelphia, PA - PHL, and my travelling dates from 02/21 to 02/23. I want single connection, in between my journey, and price limit is 500.
I will check the flight details and revert you, can you please wait for a while?
Sure.
Thank you for being patience, I found a flight that matches your preferences.
OK, may I know flight details?
Yes, flight number is 1029 of airline Frontier, price:100 with a single connection.
OK, proceed my booking.
OK, your booking is under process.
Thank you, for booking my flight.
May I know your name please?
My name is Raymond Allen.
Thank you, your ticket is confirmed.