Could I trouble you for some assistance?

Meaning

Could I ask you for help? (formal)

Examples

• John: Excuse me, <b>could I trouble you for some assistance</b>?
• Alice: Certainly, sir. How can I help you?
• John: I'm having trouble finding the restroom.
• Alice: Of course. Let me point it out for you. If you need anything else, please feel free to ask. <b>Could I trouble you for some assistance</b> again at any point