You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Charles Clark. I want to book a flight ticket from NC - CLT to TX - AUS, can you help me in flight booking?

ASSISTANT: Sure, may I know your travel dates?

USER: My departure day is 11/24, return day is 11/26.

ASSISTANT: Do you prefer halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Sorry there is no flight on your details.

USER: No problem, thank you.

ASSISTANT: Thank you.