You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Christopher Miller, want to travel from AUS to ORD.

ASSISTANT: On which dates you are willing to travel?

USER: My travelling dates are from 08/19 to 08/21.

ASSISTANT: I found a flight 1021 of Frontier airlines which has 1 connections, shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket is booked.

USER: Ok, thank you.

ASSISTANT: Welcome.