Accept first pair proposed

[rodcul]

As a logged in student
When I go to the homepage
I will be shown the person I should pair with

Scenario: Showing proposed pair

Given a logged in student Rocco
And student Chidu that I have not paired with
When I visit the homepage
Then system proposed Chidu as pair

Scenario: accepting pair

Given a logged in student Rocco
And student Molly that I have not paired with
And I visit the homepage
When I click accept button
Then system saves pairing session to db
And I'm taken to pairing matrix
And message "Congrats on pairing" is shown

Scenario: no pairs available

Given a logged in student Rocco
And there are no available pairs
When I visit homepage
Then I'm shown a message, speak to coaches

[MollieS]

Pairing id, user_id, current_user_id and date