Assuming you are leaving Glasgow on Friday and DXB on EK406 on Saturday I had a quick look in EF which currently shows the following availability.

F4 A0 J7 C7 I7 O0 P0 Y0 E0 R0 W0 M0 B0 U0 K0 H0 Q0 L0 T0 V0 X0 but no Z (J to F upgrade) showing at the moment for any day this week