answer in c++ please

Define the Voicemail class's SetGreeting0 mutator that sets data member greeting to "Hello, this is : followed by voicemailGreeting, and the SetNumber0 mutator that sets data member number to voicemailNumber. Ex: If the input is: Ma 8805132168 then the output is. Voicemail: Hello, this is Mia Phone Number: 8805132168 Ex: If theinput is: Mia8805132168 then the output is Voleemaili Hello, thia in Mia Phone Namber 8805132168 Define the Voicemail class's SetGreeting0 mutator that sets data member greeting to "Hello, this is ", followed by voicernailGreeting, and the SetNumber0 mutator that sets data member number to voicemail Number. Ex. If the input is: Mia 8805132168 then the output is: Voicemail: Hel1o, this is Mia. Phone Number; 8805132168