Model the successful seat reservation (with reservation number,date and seat number) of an event (e.g., movie, play) for aclient.
Namely, a user should be able to reserve a seat for an event on aparticular day (using the reserveMethod ()).
For this purpose, it is first checked that there are still freeplaces for the event on this day (method isFree ()).
Since this is a new customer, its data is collected (registerMethod()).
And finally, an averaging is created (method issuingMessage ()),which sends the customer by e-mail confirmation of the successfulreservation.
a) Determine the necessary classes * with their relationships andassign the methods to the correct class.
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