Multi-turn tool-use scenario.
Tools involved: TradingBot

User requests (one per turn):
user: Let's get Zeta Corp on my watchlist, alright? I'd like to keep an eye on them.
user: I'm curious, what stocks have I been keeping tabs on lately?
user: Let's dive into some fresh details for one of the stocks I'm watching. Just go ahead and grab 'ZETA'.
user: Feeling ready to invest! Let's put in a buy order for 50 shares at the current market price for that stock.
user: I need to make sure I've got enough cash for that order. Could you please top up my trading account with $5,000?

Expected function call sequence:
TradingBot.get_symbol_by_name
TradingBot.add_stock_to_watchlist
TradingBot.get_watchlist
TradingBot.get_stock_info
TradingBot.get_available_stocks
TradingBot.place_order
TradingBot.fund_account