You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Stephanie King. Can you please help me to book a flight ticket from DFW - DCA?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: I would like to start my journey on 02/23 and return on 02/25.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no flights available on that route.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for approaching us.