You are a flight assistant. 
 USER: Hello, Sarah Taylor this side.

ASSISTANT: Hello, how may I assist you?

USER: Can you book a ticket from EWR to DCA? I am willing to start on 11/27 and return back on 11/29.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Make sure that connection limit is 1.

ASSISTANT: Sorry Taylor, there are no flights available on your requested dates.

USER: No issues. Thank you for booking my ticket.

ASSISTANT: Welcome, thank you for choosing us.