You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to book a flight ticket to DCA to meet my cousin. Can you please help me for booking from DFW?

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

USER: My planned dates are on June 23 and 25.

ASSISTANT: Sure, can I know your connection limit?

USER: I need a connected flight.

ASSISTANT: Sure, can I know your name?

USER: David Baker here.

ASSISTANT: Do you have any requirements?

USER: No.

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

USER: Ok, thanks for your information.

ASSISTANT: Thank you for reaching us.