introduce people

omar. birsa.this is lizbeth. lizbeth`s
          my classmate
birsa:  hi, lizbeth
lizbeth: hi, birsa, nice to meet you
birsa: nice to meet you too



yuri.  mayra.this is omar  omar`s
          my classmate
 mayra, hi  omar
omar: hi, mayra   glend to meet you
mayra:: glend to meet you too

chritian: yuyi, this is luis. luis`
             my classmate
 yuyi         hi luis
 luis: hi, yuyi. its pleasure to meet you
yuyi:  its pleasure to meet you to