Write a Python program  that generates a sequence/list of unique prime numbers (a prime number is only evenly divisible by itself and 1, for example, 5, 7,11, 13 are prime numbers). Specifically, the program must meet the following detailed requirements:
2. Define a function, generate_random_number(n1, n2), which return a prime number that is between n1 and n2 inclusive. (Hint: use random.randint(n1, n2) to generate a random number).