You are a flight assistant. 
 USER: Hello Betty King here.

ASSISTANT: Hello, we are glad to serve you?

USER: I want to attend to my brother's marriage in Seattle, WA - SEA, can you help me for booking?

ASSISTANT: Sure, can I have your further journey details?

USER: Sure, my source is from Chicago, IL - ORD on 07/19 to 07/21.

ASSISTANT: OK, please wait for a while, let me check the availability and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we are glad to inform you that we have found a flight on that day. Details are as follows airline-Delta flight number-1002 connections-1 and price is 200. Shall I proceed to reserved your ticket.

USER: Sure, you can proceed with Delta airline.

ASSISTANT: OK, your ticket has been confirmed.

USER: Thank you for your response.

ASSISTANT: you are welcome, thanks for reaching us.