go and pick up

I go to pick up the lunch boxes.

私は弁当を受け取りに行きます

I go to pick up the lunch boxes at midday today.

私は今日の昼、弁当を受け取りに行きます

I go to pick up the lunch boxes before the meeting at midday today.

私は今日の昼、会議の前に弁当を受け取りに行きます

I go to pick up the lunch boxes with my coworker before the meeting at midday today.

私は今日の昼、会議の前に同僚と弁当を受け取りに行きます

I go to pick up the lunch boxes with my coworker at the restaurant before the meeting at midday today.

私は今日の昼、会議の前に同僚と飲食店で弁当を受け取りに行きます