Hello, I am Dennis Collins.
Hello, How can I assist you the best now?
 I want to book a flight ticket to Houston to submit my research record at Houston university. Can you help me in booking with connecting flight?
Sure, On what dates you prefer to travel?
I want to travel on 03/21 & return on 03/23.
Help me with the boarding & landing airport codes?
I want to start from Philadelphia, PA - PHL, to reach Houston, TX - IAH.
Ok, please be on hold.
Sure.
 Unfortunately, We found a Delta airline which is a direct flight, that does not matches your needs.
Ok, please do not proceed.
Thank you for reaching us.