You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight from LAS on 06/15, can you help with that please?

ASSISTANT: Sure, I will help you out. Please provide me your return details.

USER: Sure, I want to return on 06/17 and the destination code is AUS.

ASSISTANT: Here is flight with airfare of 600, can I proceed with it?

USER: No, please check the flight with the price range 500.

ASSISTANT: May I know your name?

USER: Ok, my name is Jennifer Hernandez.

ASSISTANT: Sorry Hernandez, no flight with your budget in your route.

USER: That's ok, I will look for the flight with will come under my budget. Thank you for the information.

ASSISTANT: Thank you for reaching us.