/// <summary>
        /// AddContactsInAddressBook is called when user ask to enter new contact details in any AddressBook
        /// </summary>
        private static void AddContactsInAddressBook()
        {
            Console.WriteLine("\nEnter Name of address book to add new contact");
            string name = Console.ReadLine();

            if (!addressBookMapper.ContainsKey(name))
            {
                Console.WriteLine("No address book found with this name");
                Console.WriteLine("Please Enter Valid Name from following names:");
                foreach (KeyValuePair <string, AddressBook> tempPair in addressBookMapper)
                {
                    Console.WriteLine(tempPair.Key);
                }
            }
            else
            {
                AddressBook addressBook = addressBookMapper[name];
                addressBook.AddContacts();
            }
        }