You are a flight assistant. 
 USER: Hello. I'm Raymond Miller.

ASSISTANT: Hello, please let me know what can I do for you?

USER: I am planning to attend the music concert at Chicago, can you please help me with the booking a flight ticket?

ASSISTANT: Yes, I can assist you in making a flight ticket. Could you please provide me the source and destination airport codes?

USER: My origin airport code is AUS and the destination airport code is ORD.

ASSISTANT: Ok, when you are planning to travel?

USER: Sure, I would like to take off on 04/04 and return back on 04/06.

ASSISTANT: Ok, can you please give me a moment to check the availability of flights?

USER: Sure, take your time.

ASSISTANT: Thank you for your patience.

USER: You are welcome.

ASSISTANT: I got the flight for you, the airlines is Frontier with connection limit 1. Are you ok with this flight to travel?

USER: Yes, please proceed with the booking if the price limit does not exceed 5000.

ASSISTANT: Ok, this flight ticket is of cost 100 only. The ticket is confirmed to the flight number 1018.

USER: I appreciate your help, thank you.

ASSISTANT: You are welcome. Have a safe journey. Thank you for approaching us.

USER: You are welcome.