Relationships are built on mutual understanding, and this meeting must emphasize that the US needs to come to terms with China's unshakeable stance on Taiwan. China seeks cordial relations with all nations that want to do business with them, but the US insists on using Taiwan as a cudgel against China and stirring up tensions. This practice must cease in order for relations between the US and China to improve.
China is isolating itself from the rest of the world with its anti-competitive practices and bellicose maneuvers in the South China Sea. In light of this fact, the US is reaching out to ensure that a military confrontation never comes to pass and that communications remain open. The ball is now in China's court as to whether it accepts the olive branch.