CUSTOMER SERVICE PLAN?? Delta Airlines values all of its customers and is continually working to improve its services and to offer the safest and most comfortable trip to every customer..?? ????????:????????????:????????????:???????????? /???? ??????????:????????????:????????????:????????????(???Or + ????? (24x7) or 1.-???????????????? Delta (REal Human)". Phone: Call Delta Airlines customer support line at''????????????????:????????????:????????????:????????????.?? The following Customer Service Plan provides a summary of the actions taken by Delta Airlines to assist its customers.??????????:????????????:????????????:????????????.????????????:????????????:????????????:????????????.?? This Customer Service Plan is applicable to services provided in the United States and in connection with scheduled flights to/from the United States