Play For Someone Wedding

The other day my choir mate asked me to play guitar for one of his cg members wedding. I don't even know them and he ask me to play. Not only that, I have to admit, I cannot play that well. I am not like those super guitarist like any of my friends. Not only that, 1 of the guitarist that is playing is more powerful that me like 100 times. No kidding. That person is playing for church celebration.

Anyway final answer I told them is I don't want. Didn't really tell him I don't want but due to work (really) I cannot afford to take up the offer. At times I wish my work is easier but hey, I won't kid myself, it wont be any easier but it will always become harder.