Hello,. I am Paul Walker.
Hello Paul. How can I assist you?
I need to book my flight ticket from CLT to IAH. Can you help me in booking me a connecting flight?
Sure, can I know your travel dates?
04/30 - 05/01 are my willing dates for travelling.
Paul, there is no flight available on your  requested dates.
Ok, I will choose other airline. Thank you.
You are welcome.