You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: My travel dates are from Dec 01 to Dec 03.

ASSISTANT: Do you need break in between your journey?

USER: I need a break in between my journey.

ASSISTANT: Please let me know if you have any other specifications.

USER: I would like to depart in the afternoon.

ASSISTANT: Can I have your good name please?

USER: I am Ronald Johnson.

ASSISTANT: Sorry, there are no flights available which will depart in the afternoon time.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.