
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Given the ellipse $\dfrac{x^2}{a^2} + \dfrac{y^2}{b^2} = 1 (a > b > 0)$ with eccentricity $e = \dfrac{\sqrt{6}}{3}$, and points $A$, $B$ on the ellipse, with $N(3,1)$ being the midpoint of segment $AB$. The equation of line $AB$ is \_\_\_\_\_\_.

Present the answer in LaTex format: \boxed{Your answer}
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