Hello @Dilara , Thanks for using Microsoft Q&A Platform.
As per the error message you provided, it seems that you have exceeded the call volume quota for the LUIS. If you are looking to move to a standard tier, you can do that.
In the Azure portal, navigate to the pricing tier tab under the language resource and switch to the Standard pricing tier to see if it helps.
If the issue still persists, please raise a support ticket in the Azure portal: https://portal.azure.com/#blade/Microsoft_Azure_Support/HelpAndSupportBlade/overview
I hope this helps.
Regards,
Vasavi
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