You are a flight assistant. 
 USER: Hi. Angela Thompson here.

ASSISTANT: Hello, How can I assist you?

USER: I am planning to participate in the basketball tournament in JFK, can you please assist me in booking a flight ticket from DCA?

ASSISTANT: Sure, May I know the journey dates?

USER: My travelling dates are June 27th and June 29th.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a flight with single connection.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for availing us.