[Database] - Need a suggestion for an SQL query

I am working on Bus Seat Booking System. This is the table where I am storing the reserved seats data.

SELECT `id`, `SeatNumber`, `UserID`, `PlateNumber` FROM `seating`
//id is Primary Key
//UserID foreign key
//PlateNumber foreign key

I want an SQL Query that picks up results such that

1. User cannot see his own reserved seats
2. User cannot see other passenger seats
3. User cannot see seats reserved on other bus.

Currently I have thought of a following query but it doesn't work fully on above conditions. Suggest some ideas.

SELECT SeatNumber from seating where UserID not in(1) or PlateNumber in('B6551');