You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Please help me out in booking the ticket from DCA to MSP.

ASSISTANT: Sure, can you please mention your departure and arrival dates of your journey?

USER: My trip dates will be Apr 4 to Apr 6.

ASSISTANT: Do you need any flag stop in between journey?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications regarding your journey?

USER: No.

ASSISTANT: Can I know your name for booking your flight ticket?

USER: Jonathan Baker is my name.

ASSISTANT: Thanks for sharing your details, we are unable to provide flight in between your journey routes.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.