You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I help you?

USER: I want to meet my grand parents in Austin, TX - AUS, will you help me in flight booking?

ASSISTANT: Sure, Please can you provide your source and travelling dates?

USER: My origin source from Atlanta, GA - ATL, and my travelling dates from 04/05 to 04/07.

ASSISTANT: OK.Please hold for a minute.

USER: Sure.

ASSISTANT: We found a flight matching your preferences.

USER: OK, let me know flight details.

ASSISTANT: The flight details are as follows, Airline:Spirit , flight number is 1011 and the price limit is 100 with single connection.

USER: OK. My name is Margaret Harris, proceed my booking.

ASSISTANT: OK. Thank you, your ticket has been confirmed.

USER: Thank you, for your service.

ASSISTANT: Thank you have a safe journey.