I am so sorry for your appointments on Saturday and Sunday, because I'm not in the Office. Your convenience is at the range Office Monday through Friday 9 am to 6 pm for half.
I apologize for your appointments for the day Saturday and Sunday, I did not come into the office. Convenient for the office. Monday to Friday from 9 am to 6 pm half.
I must apologize for your appointment because Saturday and Sunday I came into the office. You are convenient for office during Mondays to Fridays, when 9 a.m. to 6 thirty.