Hi, George Moore here.
Hello, George. How can I help you today?
 I need to visit to PHL from OAK for study of wildlife and research, can you book me a ticket?
Sure, could you please provide the travel dates?
Sure, my journey dates are 05/17 to 05/19. My price limit is 200.
Ok, please allow me a moment to check for the availability of flight.
Ok.
George, there is a flight available with UA airline and the price 100. Shall I proceed to book a flight ticket?
Please book it to me.
Your booking is confirmed with 1015 flight number.
Thank you for the booking.
You are welcome.