[tick_tock_tick]

> How often does an individual call an airline?

It's a very simple example that people can see the value for right away. It also acts as a good placeholder for hotel, car rental agency, restaurant, etc. Any place you'd have a ticket/reservation for that you might need to call.

[rs186]

Like parent, I did not "see the value" "right away", but on the contrary, I am more confused about what the phone brings.