law question

Consider the following scenarios and identify what type, if any, agency relationship has arisen:

a) Ben has requested his father to go with him to purchase a new car. He asks his father to conduct the negotiation. His father agrees, and when they arrive, he dutifully begins negotiations. However, halfway through the negotiation his father receives a call from a friend of his, saying he has a free ticket to a cricket match and whether he wants to go. Bens father agrees, and tells Ben Later Loser, before jumping in his own car and leaving.

b) James is the newest steward at a football club. One day the chairman of the club, Steve, walks up to James and requests him to clean up a mess in his office. At the same time, Adam, a rival football team manager shouts looking at James, Steve, is that your new centre-forward? James feels a bit upset by this remark, and shouts back No, Im the clubs new managing director. So, if you want to buy any players come and talk to me. Steve walks off without saying anything. Later, Adam comes to James and requests to buy the clubs best player at a very low price. James agrees to the sale.