Jew asking Non-Jew for assistance
Question
Answer
Shalom,
The specific situation is not quite clear, I will try to answer to the best of my understanding.
Apparently, you are talking about a Jew who asked you on Shabbat or a festival to do for him something that he is forbidden to do.
There is a number of activities forbidden for Jews on Shabbat and festival. Yet it may be permitted to ask a non-Jew to perform them.
Likewise, it is forbidden for a Jew to ask a non-Jew directly to perform certain actions, yet it is permitted to hint him to perform them.
With regard to your question about the reward, I am assuming that you are asking whether it is considered a good deed, and whether you deserve a spiritual reward. Every person who helps others deserves a reward. In this instance, there is also an element of helping your Jewish friend to keep Shabbat.