Hair colour advice needed before appointment

[BlueberryElephant]

My hair appointment is on Thursday. I have asked for a cut and highlights, but I want a whiter blonde like the colour in the photo.
The comparison shows my hair now, next to the colour I want.
To be honest I’m just wondering what I should ask for.

Take the photo and show her. That's always best.

It won't be too difficult to get your hair to that, depending on your current damage/condition.

I would take the photo and emphasise you are wanting to remove the most of the warmer tones currently in your hair whilst still keeping some dimension. You aren't wanting all over white blonde, the inspiration pic does have warmer subtle lowlights mixed in.