Replacing a string in one table with a random string from a different table in BODS

Hi,

I have a input table which is shown below,

Now I have a different table which looks like this,

My question is how can we replace the company name for all the people mentioned in the first table with a random company name   from the second table and for aparticular person the company name should always be different form the one mentioned in the first table. The final table should look like this

Thanks in advance for the help

Regards,

Austin