You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Joseph Brown.

ASSISTANT: OK, thanks for providing your name.

USER: Can you please book a ticket from DCA to DEN?

ASSISTANT: Sure,.

USER: Kindly note my fare should be 500 with single connection.

ASSISTANT: OK, to proceed booking, may I know your schedule dates?

USER: My travelling dates are 03/14 to 03/16.

ASSISTANT: OK, please wait for a while, I will check the availability and return to you back.

USER: Take your time.

ASSISTANT: Thanks for your waiting, we are happy to inform you that there is a flight found as your journey points and dates.

USER: OK. May I know the details of flight?

ASSISTANT: The flight details are, the JetBlue airline with price of 200 and the flight number is 1001. shall I proceed for booking?

USER: OK. But what are the connections.

ASSISTANT: OK, that flight contains two connections.

USER: I need with single connection.

ASSISTANT: Sorry, there are no flights available in single connection limit.

USER: Thank you for the information.

ASSISTANT: It's my pleasure to help you.