Hello how may I help you? I'd like to change my phone plan Sure, what's your plan number? I want a plan that provides me with free calling 24/7 I can add that to your plan, I need your account number please. 444 555 6667 Adding unlimited calling to your plan will cost $10 extra monthly, would you like to authorize this? That is fine Okay, that change has been made, anything else? No Okay, have a wonderful day!