Keeps using the wrong choice

    import time
dead = False

ally = input('Ally?: ')
if ally == 'Yes':
    ally = True
else:
    ally = False

User = input('Name?: ')

if not dead and ally:
    print('Sara\'s hand slipped from yours as you came to a fork in the hallways.')
    time.sleep(2)
    print('')
    print('"Quickly! Which road should we take? Right or Left?"')
    pick = input('Which way?!: ')
    if pick == 'Right' or pick == 'right':
        print('')
        print('"Ok, I trust you!"')
        print('')
        time.sleep(1)
        print('She ran towards the right, only to be stopped by a mysterious figure.')
        time.sleep(1)
        print('.')
        time.sleep(1)
        print('.')
        time.sleep(1)
        print('"ɖɨɖ ʏօʊ ȶʀʏ ȶօ ɛֆƈǟքɛ ɦօռɛʏ?~ ȶֆӄ ȶֆӄ~ ȶɦǟȶ աǟֆռ\'ȶ ɨռ ȶɦɛ ƈօռȶʀǟƈȶ"')
        time.sleep(1)
        print('.')
        time.sleep(1)
        print('.')
        time.sleep(0.5)
        print('')
        print('"' + User + '! It\'s the other way! I\'ll take care of this and be right back!"')
        time.sleep(3)
        print('"ʏօʊ ֆօռ օʄ ʄ*** ɨ աօʀӄɛɖ ȶօօ ɦǟʀɖ ʄօʀ ȶɦɨֆ. ʏօʊ ǟʀɛ ɖɛǟɖ ȶօ ʍɛ!"')
        time.sleep(2)
        print('Obeying her orders, you run as fast as your legs could take you.')
        time.sleep(1)
        print('Leaving her behind...')
        time.sleep(3)
        dead = False
        ally = False
    if pick == 'left' or pick == 'Left':
        print('')
        print('"Ok, I trust you!"')
        print('')
        time.sleep(2)
        print('She walked ahead of you, towards the left where the lights flickered.')
        time.sleep(2)
        print('A figure came from the right side as her eyes widened.')
        time.sleep(1)
        print('')
        print('"RUN AND FOLLOW ME"')
        print('')
        time.sleep(2)
        print('You follow her lead into the darkness as you hear a chuckle which'
              ' sends sparks down your spine, running out a door.')
        dead = False
        time.sleep(2)
if not dead and not ally:
    print('You leave the room from before, seeing a fork in the hallway.')
    time.sleep(2)
    print('Which direction do you take?')
    pick = input('Which?: ')
    if pick == 'Right' or pick == 'right':
        print('You decide to take the right path, going down your merry way '
              'as you felt...')
        time.sleep(2)
        print('Cold?')
        time.sleep(3)
        print('A mysterious figure had appeared in front of you covered your nose and '
              'mouth with a cloth containing a sweet smelling liquid')
        time.sleep(2)
        print('Before you went to darkness, you heard them whisper faintly in your ear.')
        time.sleep(0.9)
        print('∑ЯЯ◊Я')
        time.sleep(1)
        print('∑ЯЯ◊Я')
        time.sleep(1)
        print('∑ЯЯ◊Я')
        time.sleep(1)
        print('∑ЯЯ◊Я')
        time.sleep(1)
        print('∑ЯЯ◊Я')
        time.sleep(1)
        print('ㄚ◊ㄩῳ∑Я∑и\'₮ㄅㄩㄕㄕ◊ㄅ∑∂₮◊ﾚ∑∆√∑')
        time.sleep(2)
        print('ㄅｻｻｻ... ﾓ∆ﾚﾚ ∆ㄅﾚ∑∑ㄕ ∂∑∆Я ,' + User + 'ㄚ◊ㄩ ῳ∑Я∑и\'₮ ㄅㄩㄕㄕ◊ㄅ∑∂ ₮◊ ς◊㎡∑ ₮ｻⅰㄅ ﾓ∆Я...')
        time.sleep(5)
        dead = True
    if pick == 'left' or 'Left':
        print('You chose the left path, leading to a door.')
        time.sleep(2)
        print('It was that easy?')
        dead = False
if not dead and ally:
    print('You walk out the door, leading into reality once more.')
    time.sleep(2)
    print('Where was the girl from before?')
    time.sleep(2)
    print('Looking back, you see nothing behind you.')
    time.sleep(2)
    print('So... Was it all a dream??')
    time.sleep(2)
    print('Let\'s hope so.')
    time.sleep(4)
    print('END.')
if not dead and not ally:
    print('You walk out the door, leading into reality once more.')
    time.sleep(2)
    print('You had left her behind...')
    time.sleep(2)
    print('Looking back, you see nothing behind you.')
    time.sleep(2)
    print('So... Was it all a dream?')
    time.sleep(2)
    print('Let\'s hope so.')
    time.sleep(2)
    print('For both of your sakes...')
    time.sleep(4)
    print('END.')
    time.sleep(4)

I don't exactly understand why this isn't working. When I have an Ally and go to the right, it doesn't stop completely after that and I would like it to, since the User is supposed to be dead. If I don't have an Ally and take the right again, it does the same nonsense. It only works when I don't have an ally and go to the left, help please?