You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Myself Joseph Scott from Austin.

ASSISTANT: Nice to meet you Scott.

USER: Thanks, nice to meet you too. I would like to visit Las Vegas in this month. Can you please book a flight ticket for me?

ASSISTANT: Sure, I am here to help you to book a flight ticket but I need your travel dates to search available flight for you.

USER: Thank you for your positive response, I want to take off on 12/19 and please confirm my return ticket also on 12/21.

ASSISTANT: May I know your current location and visiting location airport code?

USER: I would like to fly from AUS and destination airport is LAS.

ASSISTANT: Please wait for a minute, let me check.

USER: Ok, take your time and find a best flight for me.

ASSISTANT: Thanks for your patience, based on your request there is a connecting flight with fare 100 and airline Spirit, shall I proceed? Your ticket has been booked with your name and flight-1004.

USER: That's perfect, please confirm this flight ticket for me. Thank you for your help.

ASSISTANT: You are welcome.