And why would you want to? Are you expecting to fail?
And just to be honest, if you want to book two times that should be a clear indicator that you are to insecure on your driving. If you are ready for your test you should feel like you got this.
Everybody is so smart about it. It is a natural wish to have multiple slots just in case because everybody knows it could be hard to get them and you have a deadline because of the theory test.