Nathan lost his dog. He placed advertisements and posters around the neighbourhood asking

members of the public to help find his dog. Kent found Nathan's dog. He took care of the dog for

a little while and when he learnt that it was Nathan's dog, he returned it. Nathan was overjoyed

and grateful at that time, as a result, he promised to give Kent a sum of RM5,000 in a week's

time. After a week, Kent meets Nathan to collect the money and Nathan refuses to give him the

money.

Advise Kent if he could pursue the reward from Nathan.