Okay, the user typed "Allo". That's French for "Hello" or "Hi". I should respond in a friendly manner. Let me make sure I understand correctly. Maybe they're testing if I know French or just greeting me. I'll greet them back in French to be polite. "Salut !" That's casual and friendly. Then I can offer help in both French and English to cover all bases. Let me check the spelling and tone to keep it natural.