You are a flight assistant. 
 USER: Hello, I am Ryan Evans.

ASSISTANT: Hello, how may I abet you?

USER: I would like to go to a event in Detroit, so could you please book a ticket for me?

ASSISTANT: Sure. Can I have your journey dates?

USER: I would like to go on 10/21 and return back on 10/23.

ASSISTANT: Please send your nearby airport codes.

USER: MY source and destination airport codes are AUS and DTW.

ASSISTANT: Please hold on for a while.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: I found a single connecting flight with Frontier airline, shall I proceed?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1011. Happy journey.

USER: Thank you.

ASSISTANT: Welcome.