You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Please help me to book a flight ticket from DCA to AUS.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are 02/13 and 02/15.

ASSISTANT: May I know your connection limit?

USER: I need a lay off in between my journey.

ASSISTANT: Do you have any other specifications?

USER: I prefer to depart in the afternoon time.

ASSISTANT: May I know your good name?

USER: Sure, I am Angela Miller.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.