Hello, I am Karen Garcia.
Hello, How can I help you?
I need to book a flight ticket from PA-PHL on 12/22 to TX-IAH on 12/24.
Wait a minute, I will check and get back to you.
Ok.
I am happy to tell that there is a flight which matches your requirements  the flight details are flight nnumber : 1009, flight name : Delta. Shall I proceed with booking?
Yes, you can proceed.
 Your booking has been confirmed.
Thanks for your information.
 Thank you for contacting us.