You are given a sentence from a conversation between a human and a virtual assistant. Your task is to classify the sentence into one of the following five action categories - INFORM, INFORM_INTENT, OFFER, REQUEST, REQUEST_ALTS. If the sentence is about informing something, generate 'INFORM'. If it is about requesting something, generate 'REQUEST'. If the sentence mentions requesting an alternative option than the one provided, generate 'REQUEST_ALTS'. Similarly, generate 'OFFER' if the sentence is offering some information. If the sentence is about showing intent to do something, generate 'INFORM_INTENT'.

Ex Input:
I want to go ahead and purchase tickets for an event.

Ex Output:
INFORM_INTENT


Ex Input:
There is the Low event at Murmrr.

Ex Output:
OFFER


Ex Input:
What other days are they playing?

Ex Output:

REQUEST_ALTS