You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am John Jackson. I want to book a flight ticket to meet my uncle in Seattle, could you help me in booking a flight ticket?

ASSISTANT: Sure, Can you please provide your journey dates?

USER: I would like to fly on 12/27 and return on 12/29.

ASSISTANT: Ok, please provide your journey airport codes.

USER: My source is Charlotte, NC - CLT and destination code is WA - SEA.

ASSISTANT: Ok, please provide your price limit.

USER: I can afford up to 5000.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, we found a flight in 1015 AA airline with price 200. Can I proceed for booking with a halt?

USER: You can proceed to booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for opting us.

ASSISTANT: Thank you for choosing us.