You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking my flight ticket from HOU to DFW?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are Sept 30 and Oct 02.

ASSISTANT: Do you want connecting flight?

USER: I need connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: Myself William Moore.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Thanks for your information.

ASSISTANT: Thank you for opting us.