You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: My name is Brandon Hall, can you help me to book a flight ticket from AUS to LAS?

ASSISTANT: Sure, we are here to make your journey comfort. May I know on which dates you are planning to start and return?

USER: Ok, please book a ticket for the dates Jan 20 and Jan 22 respectively.

ASSISTANT: Do you like to go with a economy class or business class?

USER: Ok with any class.

ASSISTANT: Do you prefer any lay by in between journey?

USER: Yes, I need a direct flight.

ASSISTANT: Is there any other specifications regarding your journey?

USER: No, thank you for asking.

ASSISTANT: May I know your good name please?

USER: My name is Brandon Hall.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, that is not a problem. Thank you for assisting me.