You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to book a flight ticket to DCA from CLT, can you please help me out?

ASSISTANT: Sure, let me know your travelling dates.

USER: Sure, my planned travelling dates are June 13 and June 15.

ASSISTANT: Please share your connection limit.

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: Sure, my name is Jerry Mitchell.

ASSISTANT: Sorry,there are no flights found based on your details.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.