I am travelling stand-by in economy with family from JFK to CCU on Emirates. Need to know the seat availability on below flights. Your help will be really appreciated.

Option 1
Thu, Nov 24 --> EK0204 --> JFK 10:40 to DXB 08:10
Fri, Nov 25 --> EK0572 --> DXB 13:35 to CCU 19:15

Option 2
Thu, Nov 24 --> EK0202 --> JFK 23:00 to DXB 20:30
Sat, Nov 26 --> EK0570 --> DXB 02:00 to CCU 07:40