The dentist's is very busy, so we have to book the visit beforehand. You have to have your decayed tooth pulled out, but we have to wait for about one month? Can you wait? If you feel painful from time to time, let's go to the dentist's and if a doctor can spare time for you, it's ok. If not, we can visit another dentist's or we can book the date when we will visit the dentist's. Prepare to go out to the dentist's tomorrow evening. OK?
(Would you check the English expressions and correct errors, please. Thank you.)