Calling a list troubles

[giveen]

The code feeds back into a discord command. I know this works, as my previous version of the bot works fine, but the json file was a mess and needed to be completely rewritten.

async def calc(ctx, quantity: float, itemA: str, itemB: str):
    itemAPrice = get_value(itemA)
    itemBPrice = get_value(itemB)
    if itemAPrice and itemBPrice:
        itemQuotient = itemAPrice/itemBPrice
        itemBEquivalent = round(quantity * itemQuotient, 2)
        quantity = quantity
        itemA = itemA
        itemBEquivalent = itemBEquivalent
        itemB = itemB
        author = ctx.message.author.name
        embed=discord.Embed(title="\N{CONVENIENCE STORE} Recommended Exchange Rate \N{CONVENIENCE STORE}", description=f'{quantity} {itemA} is equal to {itemBEquivalent} {itemB}', color=0xDA70D6)
        embed.set_footer(text=f"Requested by {author}")
        await ctx.send(embed=embed)
        await ctx.message.delete()
    elif not itemAPrice:
        await ctx.send('No match found for ' + itemA)
    elif not itemBPrice:
        await ctx.send('No match found for ' + itemB)

Previous version of it looked like this.

CONFIG = 'config.json'
with open(CONFIG) as json_data_file:
    config = json.load(json_data_file)

TOKEN = config['token']
items = config['items']
BOT_PREFIX = config['prefix']
aliases = config['aliases']

def get_value(item: str):
    if item:
        item = item.replace(" ", "").lower()
        try:
            return items[aliases[item]]
        except KeyError:
            return
    else:
        return None

with the json looking like this

https://pastebin.com/eNztKujJ