I made a feature request to Apple about this. When I do not have an internet connection, I still want Siri to take voice commands for things that do not require internet such as setting a timer or an alarm or opening an app. When I am inside a building where cellular signal and wifi are not available or flying in an airplane, I still would like Siri to work in limited capacity. I always wondered why Siri requires internet connection to set an alarm on my device. I would think it is a simple enough modification to make it work. What do you think?