How to say “We delayed the briefing because two visitors were still waiting for someone to show them around.” in Japanese

In Japanese

案内(あんない)を待(ま)ってる来訪者(らいほうしゃ)がまだ二人(ふたり)いたから、打(う)ち合(あ)わせを少(すこ)し遅(おく)らせたんだ。

Annai o matteru raihōsha ga mada futari ita kara, uchiawase o sukoshi okuraseta n da.