Myanmar's Aung San Suu Kyi meets UK Prime Minister Theresa May at Downing Street.

The transcript covers a conversation at #10 Downing St., discussing recent transitions and congratulating the progress made. It reflects on the changing seasons and life, acknowledging the busyness of transitions. The conversation concludes with final remarks.

What is the significance of the phrase 'not for us to talk about today'?

What can be inferred about the relationship between the speakers?