You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to enjoy this weekend with my family in DCA. Can you please make a reservation from JFK?

ASSISTANT: Sure, let me know your travel dates please?

USER: Sure, I want to start my journey on July 3 and intend to end it on July 5.

ASSISTANT: May I know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: Do you need any other preference?

USER: My return time must be in the afternoon.

ASSISTANT: Can I know your name please?

USER: I am James Hall.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thanks for contacting us.