Please help with question a.

Suppose there are two agents, N and 5, who are choosing when to go a restaurant. They are choosing when to go within the next ve weeks, they can each only go once (they don't have to go at the same time), and each week the restaurant has a different special which they will order. Today (1: = O), the special is cauliower, which gives each agent 1 util. Next week (t = 1), it's steak, which yields 4 utils. The week after (t = 2), the special is a salad, which they value at 6 utils. The following week it = 3), the restaurant serves salmon, worth 9 utils. Finally, by far the best special of all is in the last week (t = 4), when they serve ravioli, worth 15 utils. Suppose 5 = 1, = 1/2 for both agents, but N is a naif and doesn't know he is present biased (thinks his = 1) whereas Sis a sophisticate and knows her = 1/2. a. When would a time consistent agent (5 = 1) go to the restaurant, given 5 = 1