90 minutes?????

In Jhb on business client drops me off at OT Airport early as he has meetings to attend - I arrive at Slow Lounge early and have to find a seat somewhere else for 30 minutes. I understand the reasons but I just need to attend to some work and now wait for 30 minutes at a coffee shop whatever sorry this is going to happen often it's very inconvenient and is eventually going to force me to make changes surely there is a better way to address the overcrowding without irritating your clients