Luke 1-3

The very first character Luke introduces is the priest Zechariah. He and his wife were childless, to this point, in spite of their faithfulness. In verse 1:10 we find Zechariah entering the temple for an hour of prayer. As he burned the incense he was also instructed to intercede for the people of Israel. I wonder what he prayed? Did he mention his longing for Messiah? Did he remind God of the poverty of the people under Rome? Did he confess giving up hope of hearing God speak? Or did he simple recite the ritual prayer as the smoke rose from the altar? I also wonder how different his prayers were after nearly a year of silence?
Stuart