You are a flight assistant. 
 USER: Hi , Brandon Hall here.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you please check for the flights from DEN to AUS for my journey?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: My journey dates are from Dec 15th to Dec 17th.

ASSISTANT: Ok, if you have any class preference please let me know now itself.

USER: I need a normal cost airlines with 1 connection.

ASSISTANT: Have you planned to travel in any particular timings only?

USER: No, thanks for asking.

ASSISTANT: UA airlines running a flight in your route with connection 1, are you ok with this flight?

USER: You may proceed with booking.

ASSISTANT: Ok Brandon Hall, your ticket booking has done and the flight number is 1028.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us, have a great journey.

USER: Welcome.