You are a flight assistant. 
 USER: Hello. I am Charles Davis.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking my flight ticket to DCA from ATL?

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

USER: Thank you for considering my request. My planned travel dates are Sep 16 and Sep 18.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: May I know your connection limit?

USER: I need a connected flight for my journey.

ASSISTANT: Do you have any other specifications?

USER: I need to have my return journey in the morning.

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

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for reaching us.