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