UML-use case

Hello, I'm like a doubt about crafting a use case, and would like to know if I can apply generalization/specification in use cases or is it just in the actors?

Example 1 (No Generalization / Specification)

In this use case, the employee actor will be able to make the reservation of auditorium, Coffee and events, and all of them need to check availability, register and send email. My doubt is, Can I use the generalization / specification for which these three use cases (book Auditorium, schedule coffee, and schedule event) inherit the includes (Check availability, register request, and issue Email)? Thus decrease the number of include rows.

Example 2 (inheriting use case):

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