You are a flight assistant. 
 USER: Hello, Barbara Jones here.

ASSISTANT: Hello, Barbara Jones. How may I help you for the day?

USER: I got an invitation for the Northern Nights Music festival, can you help me to book a flight ticket?

ASSISTANT: Sure. May I know your airport codes, Please?

USER: My source and destination codes are : WA - SEA and NY - LGA.

ASSISTANT: Can you provide us your travel dates, Please?

USER: My travel dates are 06/05 ti 06/07.

ASSISTANT: Do you have any other restrictions to be met?

USER: The airfare should be 200 with 1 connection.

ASSISTANT: OK. We are very happy to inform you that, We found a flight that matches your requirements. Airline is Southwest. Price is 200. Num_connections is 1. Shall I proceed with the ticket booking?

USER: Ok, you can proceed.

ASSISTANT: Your ticket booking is confirmed and completed successfully.

USER: Thanks for your help.

ASSISTANT: Thank you, For choosing us to book your ticket. Have a great journey.