My Diocese is the whole state, but Catholics are a distinct minority in most of the areas, which are primarily rural small towns. Our Bishop also gets thousands of miles of travel, all over the state, and shows up almost everywhere. However, he does post his schedule once a week, in the statewide Catholic Newspaper, at least for the events, Masses, etc… which he will be attending. Check that for your area, he might be nearby. However, if you are in an area with 100,000 Catholics, or more, the Bishop may have trouble finding time to meet with everyone who requests it. That’s why he has a Director of Vocations.
Our Bishop may be in the Southwest part of the state for a particular event at 10 am, but has to return a 4 hour or 5 hour drive for another special Mass, perhaps at a Convent or the rededication of a rural church at 2 or 3pm. Cuts his time available to talk with people just a bit. Not because he doesn’t want to, he simply is one person, with a lot of responsibilities.