You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you help me to book my flight ticket from DFW to IAD?

ASSISTANT: Sure, I am happy to help you. Please provide your travelling dates.

USER: My trip dates are Nov 10 and Nov 12.

ASSISTANT: Do you have any break in between journey?

USER: Yes, I prefer connecting flight for this trip.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Debra Jones.

ASSISTANT: Sorry, no flights area available on your journey dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.