It is the clerk who contacts the producers we want to invite. This is why I wanted an answer, but it seems that your assistant manages the schedule.
I would like all of us to have our say. If I ask the clerk why the date has been changed, I would like her to be able to answer. I do not want to be abrupt with anybody, but I find this strange. I simply wanted to know why they were no longer appearing on March 31st.