You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I am looking for a flight from CLT to DCA, can you help me in booking?

ASSISTANT: Sure, let me know your journey dates?

USER: Sure, my planned travel dates are Sept 23 and Sept 25.

ASSISTANT: May I know your connection limit?

USER: Sure, please look for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I would to depart for the afternoon flight in a business class.

ASSISTANT: May I know your good name?

USER: Myself Laura Baker.

ASSISTANT: Thanks for your details, there is no flight found on your desired journey routes.

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

ASSISTANT: Thank you for choosing us.