What are the Chinese characters to this name in Cantonese?

[Sgt_Strider]

This is a female name and I can't figure out what the middle character is. In romanization it's spelled as Lam Chan Yan (not quite sure on the middle character, but it sounds like zhan, jan, or I think it sounds like the word lightning in Cantonese, I could be wrong about this) and I'm pretty sure the first and last characters look like this: 林_訢. Can someone here let me know what the middle character look like?

Also, I was talking with someone else and she told me that the female name, 李嘉欣 (I think I got it right), is a common name. Any truth to this?

[Quest]

嘉欣 is a pretty common name.

林_欣: sorry can't think of a character for chan for a girl in a name.

[Lu]

Who is the person with this name? Where did you come across this name, what did this person do, perhaps we can find her somewhere online.

If it's someone you know rather than someone public, the most straightforward way of finding out is asking her how her name is written

[joshyam]

could be lots of characters:

jan1: 真 珍 甄

chan1: 親 琛

unless you know the meaning of the middle character, it is impossible to identify the correct chinese character to fit here.