You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: Can I know if there is a direct flight at my route which I had planned from ATL to HOU?

ASSISTANT: Sure to check further, may I know your travel dates?

USER: Ok, please book for the dates Sept 8th and return as well is 10th.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Do you have any timing preference?

USER: No, I have only one intents about the connection limit.

ASSISTANT: Ok, can you share your name to proceed further?

USER: My name is Richard Campbell.

ASSISTANT: Sorry,  there were no flights found as per your request.

USER: That is ok, thank you for providing the information.

ASSISTANT: Thank you for contacting us.