TASK DEFINITION: You are given a sentence from a conversation between a human and a virtual assistant. Your task is to identify which one of following five services the sentence is related to - Media, Travel, Flights, Buses, RideSharing
PROBLEM: I want to get a cab for a group of 4.

SOLUTION: RideSharing

PROBLEM: Could you assist me in purchasing flight tickets? I'm headed to Philadelphia from NYC, and I'd like to return on the 14th of this month.

SOLUTION: Flights

PROBLEM: I need bus tickets!

SOLUTION:
Buses