Hi Alejandro
You can refer to the following Wiki on how to dynamically set the filename with DynamicConfiguration & ASMA.
Basically you need to construct the target file name then pass it to a UDF to store it into the Dynamic Configuration namespace. To get the date, you can use the standard currentDate function with the appropriate setting for ddmmyyyy. You can then concatenate it with your name (wherever it is coming from).
Rgds
Eng Swee