Japanese phrase
___の同席はお断りします。 ___ no dō seki wa o kotowa ri shi ma su
Meaning
We cannot allow ___ to be present.
When to use it
Refuses to allow another person to be present. This formal and firm expression is used when setting a clear boundary in a meeting or other private situation.
Example dialogue
この面談は非公開です。 ko no men dan wa hi kō kai de su
This meeting is private.
第三者の同席はお断りします。 dai san sha no dō seki wa o kotowa ri shi ma su
We cannot allow a third party to be present.