This part of your original text is a descriptive label often seen on YouTube videos, songs, or gift sites meaning "Personalized for [this] name." You wouldn't actually say this part to the person; it’s just used to indicate the content is custom-made for Melisa. Common Ways to Say It:
"İyi ki doğdun, Melisa! Nice mutlu yıllara." (Happy birthday, Melisa! To many happy years.) Iyi Ki Dogdun Melisa Isme Ozel
"İyi ki varsın Melisa, doğum günün kutlu olsun!" (It's good that you're in my life Melisa, may your birthday be celebrated!) This part of your original text is a