What SquareSpace product would be the best solution for the process of booking and paying for Guided ATV Tour packages?

Site URL: https://www.adventuretoursvernal.com/

Hey Guys,

I'm currently working on a website for a company of which has service offerings, yet no tangible product to display or "sell". 

The company is offering Guided ATV Tour packages, all with the set price of $300 per rented machine. With this there are five trails to choose from all with the same durations and pricing as mentioned. 

My question is, what SquareSpace product would best serve and streamline the process of booking and paying for our service? 

Scheduling? Ecommerce Store? Reservations Block?