Casting
The cast size can be as small as 6 and as large as around 80—and should be handled as ideal for each production. For example, Ava and Adam can be played by the same performers throughout the play, but could also be portrayed by distinct performers in each scene. Regardless, it may be a good call to incorporate some color scheme and/or costume element that ties those characters together, telegraphing that these are the same characters throughout.
Setting
I: Multiple blind date locations—can be simply four chairs
II: Either two TV ad sets, or some location for in-person pitches
III: A generic office
IV: Classic game show set—can be simply two podiums
V: An implied marathon