Basic Login Credential Checker in Python

#Login Checker #1.3
#
#Dustin Hammack
#Jan. 31, 2017

#CORRECTLY WORKING VERSION


print('\n\t\t\tHere is a friendly user login sytem. ')
print('\t\t\tYou have 3 chances to login after setting your, ')
print('\t\t\tusername and password. If you are a guest, you ')
print('\t\t\tcan login as guest with EITHER username or password.')


name = input('\n\n\nPlease tell me your name: ')
yourUsername = input('Please set your username ')
yourPassword = input('Please set your password ')
tries = 3


while(tries >= 1):
    username = input('\n\nUsername: ')
    password = input('Password: ')
    if (username == yourUsername and password == yourPassword):
        print('\n\n Welcome ' + name + '!')
        tries -= 4
    elif (username == 'guest' or password == 'guest'):
        print('Welcome Guest! Take a look around if you please')
        tries -= 4
    if(tries >= 2):
        if(username != yourUsername or password != yourPassword):
            print('Please try again!')
    tries -= 1
    if (tries == 0):
        print('You are NOT welcome here!')







print()
print()

print(input('Press enter to quit the program '))