No one can hear me

I've awoken in a dark room
No windows, just little air
As I scream I realize no one can hear me
I can't see
But I hear conversation all around
Am I alone in this dark room
I start seeing a little bit of light
Suddenly, I see people around me
My friends but I cry for help
Still no one can hear
Now I'm really alone
I walk outside and its like a blank room
As the air runs out I pant heavily
My heart gets a sharp pain
I tear because I have nobody I slowly fall saying my last words
Why didn't anyone help