Match the following tourism-related terms with their correct definitions:

1 - Reservation
2 - Itinerary
3 - Guide
4 - Check-in
5 - Voucher

a) A document that confirms payment for a service.
b) A plan of the activities scheduled for a trip.
c) The process of registering upon arrival at a hotel or airport.
d) A person who provides information and assistance to tourists.
e) The act of booking a place or service in advance.