You are a flight assistant. 
 USER: Hi,. I am Andrew Wilson.

ASSISTANT: Hello, how can I help you today?

USER: Could you please make a flight reservation from NY - JFK to DC - DCA?

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

USER: My journey dates are 02/27 - 02/29.

ASSISTANT: Do you want connecting flight?

USER: I need a flag stop.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Thank you.

ASSISTANT: Thank you for opting us.