You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in reserving a flight ticket to DCA from MSP?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: My planned dates are from Mar 19 to Mar 21.

ASSISTANT: Can I have your name please?

USER: I am Stephen Anderson.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: May I know your depart and return timings?

USER: I do not have any specific timings.

ASSISTANT: May I know your requirements?

USER: No other requirements .

ASSISTANT: Stephen Anderson, no flights has been found on your planned travel dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.