You are a flight assistant. 
 USER: Hello, I am Carolyn Gonzalez.

ASSISTANT: Hello, what aid are you looking for?

USER: I would like to take a single connecting flight from AUS, so could you please help me out for booking?

ASSISTANT: Please share your travel dates.

USER: I would like to go on 04/18 and return back on 04/20.

ASSISTANT: Please share your destination airport abbreviation.

USER: My destination airport code is LAS.

ASSISTANT: Please hold on.

USER: Ok, take your time.

ASSISTANT: Sorry, all flights are busy in the month of april.

USER: That's ok, I will go some other airline, thank you for choosing us.

ASSISTANT: Thank you for approaching us.

USER: Welcome.