As the others have said, if you are asking for full code, you are out of luck unless you hire someone.
If you are asking for general advice, here's what I would consider.
1. Use the digital outputs of a DAQ connected to a radio transmitter (message sent corresponds to output of DAQ)
2. Each "pager" has a radio receiver and a some Demultiplexer chips (4:16, multiple if you need more than 16 total pagers).
3. Each "pager" is set up with logic gates that pass HIGH for a specific input (unique to each pager) (this would be better done with a microprocessor but the logic gate option is probably cheaper)
4. By sending the right digital output of the DAQ (01101, for example) it corresponds with only 1 pager and it's circuitry activates (sound, vibration, etc)
As far as the user interface, you'd probably want a barcode scanner (sticker code on each pager), or maybe RFID chips, to quickly register which pager is assigned to the name being entered. The DAQ outputs for each pager would be hard-coded and automatically selected when required. Of course, you'd probably want your front panel to look something like your seating layout.
