This should be a Endgame thing. This can be a Dispatch Center expansion. It should be expensive and take longer than any other expansion to build.
You would have to train people in an academy. After they would have to be assigned to X Stations. Dispatchers will respond to missions inside the stations coverage area.
Dispatchers would take a few minutes to respond to each Mission, this way you still need the player to respond to others mission if they want to make lots of money.
If missions spawn every 1 minutes, dispatchers would take 2 minutes to respond, if settings are changed to make missions spawn slower, dispatchers also take longer to respond to each mission.
Maybe take 25% of the credits you get from missions responded by dispatchers. Also if players don't respond to missions after 15mins, dispatchers will stop working.
The point is to not make them OP so players don't take advantage of it by leaving the game on and afk while dispatchers answer for them.