# CREATE YOUR FUNCTION HERE
def print_data(dictionary):
    name = input("Enter a name:\n")
    while name not in dictionary:
        print("ERROR: unknown name.")
        name = input("Enter a name:\n")
    #if(name not in dictionary):
        #print("ERROR: unknown name.")
    #else:
    print("Data available for {0}:".format(name))
    for k, v in dictionary[name].items():
        print("{0} -> {1}".format(k, v))

# DON'T CHANGE THIS CODE!
# IT IS USED FOR THE FIRST TWO TEST CASES
if __name__ == "__main__":
    example = {'Maegan': {'phone': '1', 'major': 'neuroscience'},
               'Caio': {'biggest fear': 'grading', 'major': 'comp. sci.', 'hobby': 'fifa'},
               'Bruce': {'phone': '3', 'biggest fear': 'bats', 'hobby': 'fighting crime'},
               'Jared': {'major': 'cs', 'hobby': 'working :('},
               'Shengquan': {'phone': '3120'},
               'Vivian': {'major': 'data science'},
               'Barry': {'major': 'forensics', 'hobby': 'running'}}

    print_data(example)