You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, we are gladly here at your service.

USER: My name is Gregory Campbell, and I would like to book my flight ticket.

ASSISTANT: Sure, May I know your airport codes and dates of travelling?

USER: Sure, my departure is from MA-BOS to IL-ORD. My travelling dates are from Nov 23 to Nov 25 with a price limit of 200.

ASSISTANT: OK, Do you have any preference connections and price limit?

USER: Yes, I need one connection.

ASSISTANT: May I know your price limit? Sorry for inconvinience. Please wait for a while, let me check and get back to you.

USER: OK.

ASSISTANT: We are happy to inform you that we found flight. Details of flight as follows airline-Southwest flight number-1015 connections-1 and price limit is 100. Shall I proceed to booking?

USER: OK, thank you. You can proceed.

ASSISTANT: OK, your ticket has been confirmed.

USER: Thank you so much.