You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: In Denver, CO - DEN, I have to attend speech in my collage. Can you please book a flight ticket?

ASSISTANT: Sure, Can you please provide your source and journey dates?

USER: I need to start my journey at Austin, TX - AUS on 08/18. I would like return on 08/20. Make sure that I need one connection.

ASSISTANT: Ok, Please wait for a while. Thank you for waiting, May I know your name?

USER: Timothy Wilson is my name.

ASSISTANT: Ok, we are happy to inform you that there is a flight found with your given details. The flight details are airline:Spirit, flight number:1003, price:100.

USER: Ok, you can proceed for booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thanks for your help in booking my ticket.

ASSISTANT: Thank you for reaching us.