Using Flow to get value from Lookup Column to use for another List

Hi;

I want to make some List below:

Stage 1: Lookup Origin and Purpose column (It's very easy)

Stage 2: Using Flow to get Lookup Colum from Product Table and Customer Table to Order Table

Stage 3: Use Some Column (include Lookup Column before like Origin) to use in Process Table

I wonder:

- Can I use Flow to get value from Lookup Columns to use in next step Column?

- Can you explain it visually to help me give the above example, in each stage? I appreciate it.

Thanks