Hello.
user
Hello, how may I aid you today?
assistant
I am Stephen Allen  and  I need to attend a business meeting in TX-HOU on 04/14 from NC-CLT on 04/12.
user
OK. We are here to help you. Let me check what flights are available for you.
assistant
OK.
user
Thanks for your time. Unfortunately we did not find any flights available matching your criteria.
assistant
OK , thank you  for the information.
user