Saving Customer Event Sign Up Info

I’m having trouble with
I am trying to allow my customers to make bookings and sign up for events and be able to not have to fill out a long form every time they do this.

Working in
Wix Editor

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What I’m trying to do
Describe the goal or outcome you’re hoping for

What I’ve tried so far
I have set up a members area, but having a hard time getting the event checkout info to sync with their profile info. I was thinking of trying to integrate intake forms. I just want to allow customers to login or make a purchase as a guest. I want them to be able to make a booking and only have to fill out a long registration form for the first time. and the same for events.

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