I want to make a "ticket-system" and want the channel it creates to have the name of the first letter of the user. So, I already have this:
@client.event
async def on_raw_reaction_add(reaction):
ticket = await guildbtv.create_text_channel(name=f'ticket', overwrites=overwrites, category=supportcat,
position=None, topic='Hier kannst du dein Anliegen äussern!',
reason='Ticket')