Tips on harmonizing mature oak flooring to foreign oak flooring? I have fine, older oak flooring contained by part of my house...

I have fine, older oak flooring contained by part of my house that desires to be refinished. I want to put new oak down surrounded by the rest at the same time. I am concerned that they will transport stain differently. I am thinking I will have to pick different color stains. I am not sure if i trust my flooring guy to be capable of do this- but I am not sure if I have any other selection, or if I am even going about this the correct way- any insight would backing. Thanks!
Bedroom: orange/blue/green ?
Answers:    Make sure the older wood flooring is sand good previously the stain and then it will be a virtuous a match or should be:)