You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: I am Ronald Garcia. I want to book a flight ticket from ORD to DCA. Could you help me in booking?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Let me know when you are willing to travel?

USER: My preferable dates are from 09/23 to 09/25.

ASSISTANT: Could you please mention if you need a connection in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Ok.

ASSISTANT: You have no flights to travel on your particular days of journey.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you.