After giving answer no or n still printing me out : " SOLD!" . What's wrong ?

TICKET_PRICE = 10

tickets_remaining = 100  

name = input("What is your name?  ")

# Output how many tickets are remaining using the tickets_remaining variable

print('{} tickets are remaining '.format(tickets_remaining))

# Gather the user's name and assign it to new variable

# Prompt the user by name and ask how many tickets they would like

order = input(" Hi {}!. How many tickets would you like?  ".format(name))
order = int(order)

# Calculate the price

price = order * TICKET_PRICE

print(" Total price is ${} .".format(price))

# Prompt user if they want to proceed
confirmation = input("Are you sure You want to confirm purchase? (Yes/No)   ").lower

# print out to the screen "SOLD!" to confirm purhcase

  # and then decrement the tickets remaining by the number of tickets purchased

if confirmation == "y" or "yes":
  print("SOLD!")
  tickets_remaining -= order

  # Otherwise....

  #Thank them by name


elif confirmation == "n" or "no":
    print("Thank You {}! ".format(name))


# Otherwise....

  #Thank them by name