You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I need to travel from CLT to IAH, can you help me in doing that?

ASSISTANT: May I know your trip dates?

USER: My journey dates are Sep 14 to 16.

ASSISTANT: Do you have any connecting flight preferences?

USER: I prefer to travel in direct flight.

ASSISTANT: Do you have any other Preferences?

USER: No.

ASSISTANT: Can I know your name please?

USER: I am Kathleen Roberts.

ASSISTANT: No flights found as per your preferences at the moment.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for choosing us.