Hello. I am William Thompson.
user
Hello, how can I assist you today?
assistant
 I want to travel to TX-HOU to meet my parents from PA-PHL. Can you book a direct flight?
user
Sure, may I know your journey dates?
assistant
My journey dates are 10/12 and 10/14.
user
Do you need a halt in between your journey?
assistant
 I need a direct flight.
user
Please wait for a moment.
assistant
Ok.
user
Sorry to say that, no flights were found with your given details.
assistant
Ok, thank you for your help.
user
Thank you for reaching us.
assistant