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How to choose between constructor / parameter injection?

class BookingMessager : IBookingMessager{

  BookingMessager(IBookingDataSource source,IBookingMessageFactory messageFactory,IMessager messager){

    this.source = source;

    this.messageFactory= messageFactory;

    this.messager = messager;

  }

  void SendBookingMessage(int idBooking){

    Booking aBooking = source.GetById(idBooking);

    BookingMessage aMessage = messageFactory.Create(aBooking);

    messager.SendMessage(aBooking.Shop.Contact,aMessage.Title,aMessage.Content);

  }

}

       

BookingMessage Create(Booking aBooking){

return this.BookingMessageFactoryIndex.ContainsKey(aBooking.Shop.ID) ? this.BookingMessageFactoryIndex[aBooking.Shop.ID].Create(aBooking) : this.default.Create(aBooking);

}