Education Bill

On a point of order, Mr Speaker. You will have noted that the Secretary of State was not present for the Third Reading of the Education Bill. I wonder whether you can give any advice as to whether, when a Secretary of State does not turn up for the Third Reading of their own Bill, which I think is quite unusual, any information should be given to the House, or possibly as a courtesy to the shadow Secretary of State or Opposition Front Benchers, as to why they are not here. We understand that the Secretary of State, who is apparently now standing somewhere nearby at the Bar of the House, was available to come here. Are there any procedures by which it would be normal for the Secretary of State to give notice that he is not going to participate on Third Reading?