Hello how may I help you? Hi I want to manage a contact in my address book Which contact? I want to modify a contact named Roberto Rodriguez What would you like to modify? I would like to add a work phone number for him What is the number? (000) 000-0000 extension # 32 Ok I have added a work number for Roberto Rodriguez. Is there anything else you need me to do? Yes, can you edit his birthday to March 27th? I have edited his birthday as well.