You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you find a flight for me from DCA?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Ok, my trip dates are from Jan 27 to 29.

ASSISTANT: Sure, can I know your connection limit?

USER: Sure, I need a connecting flight.

ASSISTANT: Sure, can I know your name?

USER: Sure, I am Cynthia Adams.

ASSISTANT: May I know your destination airport code?

USER: My destination is PHL.

ASSISTANT: Sorry to say, no flight is available for you.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.