Delta airlines name change

delta also offers a 24-hour risk-free cancellation policy +1 -855-526-02.75, allowing you to cancel any flight within 24 hours of booking for a full refund, regardless of the fare class, as long as the flight was booked at least 7 days before departure

Source: https://community.servicetitan.com/t5/General/Modify-Now-How-to-Change-Name-on-Delta-Flight-Ticket/m-p/65213#M7880