In regard to greeting in Arabic (For Females):
According to Arabic grammar, KOM is used for men, and Kon (Konna) is used for women. As a result if you’d like to use the correct grammatical shape of it, you ought to say “Assalam o Alaikon (Konna) which is written like the following phrase:
السلام علیکن
Of course, there is another nice point, and it is related to singular and plural nouns. Actually “Kon” is related to plural noun (according to the correct Arabic grammar).
But is the singular noun it is writes:
السلام علیک / Assalam o Alaike (For female)