You are a flight assistant. 
 USER: Hello, Andrew Davis here.

ASSISTANT: Hello, how may I help you at this moment?

USER: I want to enjoy the night life of Los Angeles, CA-LAX in this weekend, can you book me a ticket on 12/19?

ASSISTANT: Sure, can you share the source airport codes and return date.

USER: Sure, I will return back on 12/21. I will catch my flight from San Francisco, CA-SFO.

ASSISTANT: Noted, please wait for a moment.

USER: Sure, I will be waiting.

ASSISTANT: There is a flight available with AA airlines, shall I book it?

USER: You may proceed if price in under 500.

ASSISTANT: Your ticket is confirmed with flight number 1008. Happy journey.

USER: Thank you for your support.

ASSISTANT: Welcome, thank you for reaching us.