Hello, I am Karen Garcia.
user
Hello, How can I help you?
assistant
I need to book a flight ticket from PA-PHL on 12/22 to TX-IAH on 12/24.
user
Wait a minute, I will check and get back to you.
assistant
Ok.
user
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?
assistant
Yes, you can proceed.
user
 Your booking has been confirmed.
assistant
Thanks for your information.
user
 Thank you for contacting us.
assistant