You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Please help me in booking my flight ticket from DCA to CLT?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: My travelling dates are Oct 26 and Oct 28.

ASSISTANT: Do you prefer break in between your journey?

USER: I need single connection flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: No.

ASSISTANT: Can I have your good name please?

USER: Myself Ryan Jones.

ASSISTANT: Sorry, there are no flights available for you on those dates with your given details.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.