Get value from cell to other sheet based on condtion

Hello,
i have sheet with lot of data . i want to get some value of my sheet to other sheet in excel . for ex:

Cell A | Cell B 
==============
AB      |499
-------------------------
CD1   |399
----------------------
JK       |233
------------------------
AB     | 499
-------------------------
CD1  |399
----------------------
JK       |233

this is my sheet with data now i want to get the column B data in my other sheet for ex:


Cell A | Cell B
==============
AB |499
-------------------------
CD1 | 399
----------------------
JK | 233
------------------------