Hello. I am Brandon Jones.
Hello, how may I help you at this moment?
I would like to book a flight ticket with economy  class.
Sure, I will help you. Please send your travelling dates.
Sure, my travelling dates are May 17 and May 19.
May I know your nearby airport codes?
Sure, my airport codes are ORD and IAH.
There is a connecting flight available with Delta airline, shall I proceed?
Yes, please proceed.
Your booking is done with flight number 1001. Happy journey.
Thank you for your service.
You are welcome, have a nice day.