Basi form for submission sms

So i have a basic form that if you want to reserve a table, you can. My ? is when they hit “submit” i want that submission to go to a cell #. Is this even possible? my clients are not going to log in to see if anyone reserved a seat…but if they get a notification on their cell they can let the customer know they recv’d their “reservation” Its very basic and im trying to make an app more robust for apple…this is my only hiccup. its a small food park truck that is not taking orders atm. so “reserving” a table may let me slide thru. ANY help is greatly appreciated.