You can legally use a "dummy ticket" or temporary flight reservation—a document that verifies a ticket reservation without actual payment—to illustrate your travel arrangements while applying for a Schengen visa. Dummy tickets provide all the details required to apply for a visa, such as the date, the itinerary, the passenger's contact and personal details, and an active PNR. Therefore, for as little as INR 350or $5, you can apply for a visa using one of these tickets.