add booking feature in drupal commerce In drupal commerce, I would like to add booking feature if the product is not available for now. If the product is not available for now, I want to allow user to make booking of this product, I also want to reply email to user as soon as the product is available. Does drupal commerce support for booking? Any suggestion, pls!

Thanks
You can try these modules :
Commerce Waitlist
 or Commerce Stock Notifications
They allow send notifications if product available again. As for possibility for user to reserve product in stock: without custom module such feature,I think, cannot be realized.