Hi. I am Richard Thomas.
user
Hello, Richard Thomas. How may I be at your service?
assistant
I want to book a flight ticket to exhibit my painting in an art gallery  on 05/17 and my return will be 05/19.
user
Ok. To proceed in booking, I need your airport codes.
assistant
DFW and PHL are my airport codes.
user
Thanks for your details. You have 1001 flight, price is 200 with 1 connection, airline Southwest. Is it comfortable to you?
assistant
 Yes, You can proceed booking.
user
Your ticket was reserved.
assistant
Thank you for your help.
user
Thank you for choosing us.
assistant