Hello.
user
Hello, how can I guide you today?
assistant
I am Kevin Carter, help me to book a  direct flight from Boston to Houston.
user
Sure, I will help you with booking. Please forward your trip dates?
assistant
I will fly on 05/17 and return on 05/19.
user
Help me with your airport codes?
assistant
I will fly from MA- BOS to TX-HOU.
user
Thanks for your details, there is no flight found on your journey routes.
assistant
Ok, thank you for the information.
user
Thank you for visiting us.
assistant