I'm not sure if I can help you, but we definitely need some more information. Will you require seats for everyone or will people keep standing? Should a meal be served? Do you have a rough budget (total or per person?) Any preference in terms of style and location?

It shouldn't be too hard to find something this time of year, but a week isn't much time to search. Definitely have a look at places the wine area around Geneva; easy to reach, with several facilities, and a lot cheaper than Geneva (especially since it's off-season).

Just one place comes to mind that should suit your purpose no matter your preferences: Auberge de Satigny. It's friendly (but not luxurious) and unless they already have a booking you should be able to arrange it quickly.

Thank you very much for responding Edward... A friend of my fiancée told us about a place its the Tennis Club de Carouge, very nice and for a good price.

And yes, next time I will try to give more details on my questions...

Have a good week.

Luis.