The phrase "ably served" is correct and usable in written English.
It can be used to describe someone who has been served or assisted in a competent and skillful manner.
Example: "The guests were ably served by the attentive staff throughout the evening."
Alternatives: "skillfully served" or "expertly attended to".
They were ably served by a quintet led by the pianist Mike Renzi.
He and Mr. Graham were ably served by a gifted and hard-working cast.
And seared yellowfin tuna is ably served by truffle broth and more of that celeriac purée.
Four large bluepoint oysters are ably served by a stuffing of crab meat and spinach and a Champagne béchamel sauce.
During the time he so ably served as Chairman of the Board, many thousands of students were enabled to pursue their dreams by earning their degrees.
Besides his three leads, he's also ably served by Michael Gambon as King George V, Anthony Andrews as prime minister Stanley Baldwin and Timothy Spall as Winston Churchill.
We've made this nomination, and we think he will ably serve as ambassador".
A side street has to be kept open for emergencies, and 61st Street ably serves that purpose, he said.
But he professes few doubts about whether he, as comptroller, can ably serve as the sole trustee of the state pension fund, with assets of $154 billion.
We extend our deepest condolences to Dr. Newman's life partners Gabrielle L. Kurlander, who so ably serves as the All Stars President and CEO, and Jacqueline S. Salit, and to his children Elizabeth and Donald and granddaughter, Jane.
"With this historic vote," he said, "the Senate has affirmed that Judge Sotomayor has the intellect, the temperament, the history, the integrity and the independence of mind to ably serve on our nation's highest court".
