Hello how may I help you? I want to change a contact. Sure, which contact would you like to edit? I want to change Chris Tucker's. What would you like to change it to? i want to get rid of the phone number I have for him. Sure, could you verify the phone number for me please? I think it was 999-555-1111. Okay, once you delete this number, the contact will have no phone number associated with it, is that okay? Yes. i will change it later when i get his new number. Okay, the phone number for Chris Tucker is now deleted.