Phrases Asking for Help Politely

Could I trouble you for some assistance?

B2

Meaning

Could I ask you for help? (formal)

Example sentences

John: Excuse me, could I trouble you for some assistance?

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. Could I trouble you for some assistance again at any point