Customer specific pricing for some store products (only visible for that customer)

[Osita123]

Hello guys, just wondering if anyone has used a script or if anyone already has a script which allows certain products to have a different price for customer a vs customer b.

For example John sees gum has a price of $1.00; however, Bob sees a price of $0.75.

Very new to Shopify and liquid so I would appreciate it!!