Any chance to find a good banquet hall for my engagement in toronto for july?

hi, I'm getting engaged with my afghan girfrliend in Toronto. Now my question was if I still have any chances to find ANY banquet hall for july, I know I'm alittle late, but this whole thing is a last minute thing. Would you guys know any place that accomodates up to 200 people? I just need the banquet hall with the seats and tabel, the rest I will provide myself. Please help me out people! THANK YOU!