Hello to all.
I am very new to Power automate and only now have started exploring. Did a few tutorials, watched a session, and perused some documentation.
In my attempt to create a simple "Block my calendar for 1H" type of button (aim here is when I go to lunch or have an improntu meeting, i just tap the button on my phone and done), I am interested to make the "Subject" of the event to be the Text input of my trigger (the reason chosen when triggering the flow).

Is this possible?
In a side note: In a further advance on this button, would be interesting to know if it is possible to instead of adding a finite number of minutes/days/hours for the "End time" if it would be possible to have the flow prompt for a duration (given the chosen variable of minutes/hours/days).
Thank you for your time.