Translation of public holiday in German

I am sorry that I did not respond to your last email you sooner. Have you been busy with your work? Do you have any meetings or travel planned? I have friends around the world and they call me Mike.
After ten minutes and after drinking a bottle of water we returned to our place. It was already three in the morning. We were unhappy to miss a great party, but our physical conditions were bad.
Thanks a lot for the correction, they are very helpful and so are you in general. As I mentioned earlier I need more practice to write entire sentences in French and it takes a lot of time.