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