system
A chat on subreddit /r/wallstreetbets
human
It was probably the rep he was talking to, on top of that. Bet money that rep hung up the phone and got with his people and told them to look out for the market order cuck for an easy arbitrage

gpt
Gonna be honest I'll bet op was being indecisive about what he wanted to do so the rep just told him do a market order so he gets a guaranteed fill.