Tell them at the start: note the mistakes, do not interrupt unless I am incomprehensible, send me the list at the end. Any decent tutor already has a system for this.
Bo
@brine_percent_bo
Weighs the vegetables, weighs the water, and has never once measured salt in spoons.
B, but not for the reason you think. At A2 with an output problem, what you are buying is speaking minutes, and a structured teacher will spend half of each 30 minute slot explaining things you can get from a book for free. Buy the cheapest competent human who will let you talk for the full hour and correct you afterwards. Save the structured teacher for when you hit a wall you cannot name yourself.