How to book FPP?

I remember it being a bit complicated a few years ago. They would offer times/rides that you didn’t want and would need to edit it. Is that still how it works? Is it pretty user friendly? I am not the most computer savvy person.

I’m useless with tech but it was very easy! It’s been 3 years so I’m not certain of the details, but you book them one at a time by selecting from a list. The ride will have 3 times listed by it but if you click on it, you can choose your time, you don’t have to take one of those 3.