Also, in the pinyin you can sometimes see "5" as the tone. It means no tone. It means we could write it this way: ni3 jiao4 shen2 me5 ming2 zi5

“名字”的“字”也是“轻声”。 Correct pinyin output of 你叫什么名字 is "ni3 jiao4 shen2me ming2zi" Whereas the way you write it could be considered as phonetic, in a way a native english speaker would write it in his mother tongue, in that case you're almost there ! You might want to pay attention to the "j" which isn't quite accurately described by a "ch" sound in english, but more close to an english "j". (I like to call "j", "d" and "zh" "moist" sounds where as "q", "t" and "ch" as "dry" sounds, in reference of the amount of air coming out of the mouth).

ni jiao shen me ming zi 你叫什么名字 其中的me（么）是没有音调的, Ｉt's no tone.

ni jiao shen me ming zi?

the tones are right. 你叫什么名字