Dear my students.
I'm so sorry but I will not be available on weekdays and maybe Saturdays for a while.
My father will be in hospital from tomorrow and I need to take care of him.
Also, my work schedule may be changed soon.
My schedule is uncertain at the moment.
So I am so sorry if I cancel your lesson :(
I think I have time on Sundays. I hope we can have a lesson on Sundays.
ご迷惑おかけしてすみませんm(_ _)m