Need appointment answers as soon as possible

I have a program that is starting up in two days in which i created an appointment calendar. I am running into difficulties.

First, it is for a boat rental program. People can select 

Mornings

Afternoons

or Full days

If mornings or afternoons are selected you can have 2 rentals in a day but the full day rental option should become unavailable. And, if someone rents for the day then there is only 1 rental for the day and the morning and afternoon options should become unavailable. Your form to my knowledge doesn't let me do that. Is there a way?

You can have 3 Appointment fields and based on the option chosen(Morning, Afternoons, Full days) you can show/hide the Appointment field.

Let us know if you have further questions.

Thanks.

The show/hide function doesn’t seem to work on appointments. I can’t select a State in “IF” condition.
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The show/hide function doesn’t seem to work on appointments. I can’t select a State in “IF” condition.
...

Currently it is not possible to use the appointment slot in conditions.

To clarify, do you have to hide an interval or slot depending on condition?

Can you please share more information on how would you like you form to work?

Thank you very much!
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Actually, I think you will need to list the options using a dropdown or radio button:

Mornings

Afternoons

Full days

Then you will need to add 3 different appointment fields to your form, the conditions should be based on the dropdown/radio button field instead of the appointment. 

Kindly give it a try and let us know if you have any questions.