I think you might agree that how and in what spirit and manner we ask matters. I don't think you believe that asking insincerely and still wishing to sin, knowing the consequences.. "asking" is not really asking.
God not only gives us the beginnings of conscience, He forms it in us and he gives us the strength to direct our actions toward our wish to be one with Him - as we grow in spirit. All of these things are from God. I hope you agree thus far.
Perhaps then it is a matter of viewpoint or semantics. You might say, if we ask sincerely God will change our actions. I see it as simultaneous, inseparable. God does not ask of us what we cannot and if we truly wish to be near Him, we will choose to do.
All of this is within our capacities, individual capacities. These are hard to know but we must strive continually to be close to God even knowing there is no perfection this side of the veil.
Pelagius responsed to Augustine prayer ("Command what you will and grant what you command.") in exactly the same fashion as what you have posted.