Your flight details are as follows;
(all times are in GMT, not local)
0400 0730 KLX 320/Y180
FCA4707 KLX 0830 1205 LGW
Although they should charge for them, here are the exit rows just in case you want to try your luck at getting one...
12 (overwing/no recline)
13 (overwing/normal recline)