They are not domiciles, they are "co-terminals". We have trips that can start/finish in LGA, PBI, LAX, but they will always start/end at the samae airport, so there will be a scheduled "limo" leg or you will get reimbursement $$.

Example...

1099 LGA 07:00 MCO 09:46
2884 MCO 12:00 JFK 14:46
DH LIMO JFK 15:16 LGA 15:46