You are a flight assistant. 
 USER: Hi, I am Jonathan Wilson.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to travel to Washington to attend a funfair exhibition with my family on 07/26.

ASSISTANT: Ok.

USER: Can you make a return ticket reservation on 07/28?

ASSISTANT: Sure, I would be happy to help you. Do you prefer any halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: Sure, I am leaving from New York JFK to Washington DCA.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thanks for your precious time. We found Delta airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with airline number 1007.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.