If I understand the question, yes, that's correct. We adjust the capacity to service passengers based on the forecasted volume of passengers and the arrival patterns.
As I mentioned, there's been a lot of volatility in what actually materializes at an airport versus what is forecasted. There are pressures throughout the system that disrupt those passenger arrival patterns. It means that sometimes we have staff when the passengers aren't there. Sometimes there are not enough staff because a schedule has changed, or an aircraft has arrived late or was held, or the connections traffic is off. All of those things affect screening. Our objective, though, is to have as many screening officers available as we can, and to have as many lines open to serve the public.
The factors that have also affected that have been the attrition rates within not just our organization but the industry. The labour market has been a significant challenge in terms of getting people onboarded. There are other factors at play, such as volatile passenger traffic. Again, that's through no fault of the industry's. I think they're scrambling to recover as well. There are also processing challenges. We're seeing a lot more passengers show up with carry-on bags, and it takes longer to process.