You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Carolyn Allen. I want to book a flight ticket with price limit 1000.

ASSISTANT: Sure, Carolyn Allen, we are here to help you. Can you please assign your reservation details?

USER: My departure day is 12/22, return day is 12/24.

ASSISTANT: Ok, To proceed further, we need your airport codes.

USER: I want to start from DC-IAD to NC-CLT for attending client meeting.

ASSISTANT: Ok, Thanks for your details, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for your patience, we found a 1013 UA plane with a single connection. The fare is 200. Can I proceed?

USER: Yes, please.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us, have a nice day.