Butler: "Apologies, esteemed guests. Master Diluc must excuse himself for while, but there is no cause for concern, the party shall continue, the wine shall flow, and this evening shall remain enjoyable."

Context: This line is said very announced and in high spirits to keep the flow of the party thriving and alive. This is so the crowd can avert their eyes from seeing Master Diluc and another party leaving without causing any suspicion .

Maid: "Nothing to do with you, for sure. now get back to work, Scullion!" 

Context: One of the armature butlers asked a question, she tells him to not worry about it and focus on your job. You can do your own interpretation on how the lines should be delivered.

Armature Butler: Oh dear, I'm so sorry Miss-us!

Context: The butler almost collapses but a maid helps him back on his toes, This is said fast and apologetic.