def make_statement(statement, decoration):
    """Emphasises headings by adding decoration
    at the start and end"""
    return f"{decoration * 3} {statement} {decoration * 3}"


def string_check(question, valid_ans_list=('yes', 'no'), num_letters=1):
    """Checks that users enter the full word or the first letter"""
    while True:
        response = input(question).lower()
        for item in valid_ans_list:
            if response == item or response == item[:num_letters]:
                return item
        print(f"Please choose an option from {valid_ans_list}")


def instructions():
    make_statement("Instructions", "ℹ️")
    print('''

For each flower order enter ...
- Name of Customer 
- Flowers of choice 
- Amount Wanted

Once you have bought all the flowers you want, enter
exit code ('xxx'), and the program will display the flower
sales information.


''')


# Program main heading
print(make_statement("Welcome to Planty Plants ", "🌸"))
print()
want_instructions = string_check("Do you want to see the instructions? ")
if want_instructions == "yes":
    instructions()