The elaboration is that you need to provide a few more details about your data before anyone can help you in any detail. By 'delta', I'm guessing that you mean loading only data changes? Does that mean inserts only, or inserts and updates, or inserts, updates and deletes?
Do your data records have a 'date last modified' column?
How many columns are in the data you are uploading?
What is the PK of the data and does the PK exist in the data which you are loading as well as the target data?
I appreciate that you are new to SSIS and that there is a lot to learn, but no one here is going to develop your package for you - you need to at least learn the basics and have an idea of what you are trying to achieve, then we can help you with all those niggling questions that come up as you work through it all.
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