Basic Command and Response

/goal Task
=> General + @channel:
@user will do today: Goal

/update Task
=> General + @channel:
@user update on: Task Update

/problem Problem
=> General + @channel:
@user have Problem

/status
=> @channel

Today Goal:
@userA: x, x, x
@userB: y, y, y

No goal today:
@userC, @userD, @userE

/status yesterday (or any date) => @channel

Yesterday Goal:
@userA: x
@userB: 
  * y1
  * y2
  * y3

Yesterday Update:
@userA: xxxx
@userB: yyyy

No goal yesterday:
@userC, @userD, @userE

More command sample

/status last 3 days
/status last 1 week
/status last 3 weeks
/status last month