Smart Parking Space Indicator - (Speaking > Unusual Situation)

You are in a shopping mall parking garage and notice an innovative parking space monitoring system.

Call your friend who is coming to meet you at the mall.

Describe in detail how this smart parking system works, what technologies it uses to guide drivers, and explain why you think this system is helpful.

Ask your friend if they would like you to wait and guide them to use this new parking system when they arrive.