You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me to search a flight with 0 connection limit?

ASSISTANT: Can you please tell your travelling dates?

USER: The travelling dates are 02/23 to 02/25.

ASSISTANT: May I know your travelling locations?

USER: The airport codes are from DC-DCA to NY-JFK.

ASSISTANT: May I know your name please?

USER: Sure, my name is Angela Baker.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you and have a nice day.