User turns:
user: Hey there! Could you help me by identifying the stocks currently present on my watchlist?
user: Could you kindly remove 'Zeta Corp' from the list?
user: I am interested in purchasing 50 shares of 'Apple' at the present market price. Please proceed with the transaction.
user: Would you be able to show me the details of my most recent order when you have a moment?

Involved APIs: TradingBot
Ground-truth function call path:
TradingBot.get_symbol_by_name
TradingBot.remove_stock_from_watchlist
TradingBot.get_watchlist
TradingBot.get_stock_info
TradingBot.place_order
TradingBot.get_order_details