Translation of Stempel

I like writting you messages although most of it is really pointless. I mean it is very good for my English studies, but except that I could not understand why you would be interested in reading it.
Can we speak on Tuesday to discuss the exact time table for Saturday? Did you book the following flights? Possible Hotels, I recommend the first, as it is newer and in a nicer location, just in the center.
If the issue reoccurs let me know immediately, as it is not acceptable for us! I will look into the network files. Dan, it is great that you put so much effort in helping us. It keeps us going.