The sentence has some errors, it should've been: لَيسَ عِندَكِ وِشاحٌ يا سامية
The ة in سامية is silent because it's at the end of the sentence.
Plus names never have nunation, if I remember correctly.
Many female names do not have nunation but some do. And many if not all male names have nunation.
What is nunation?