So my flight from DAL->CDG->ATH was delayed on DAL-CDG leg, which caused connection to miss and they rebooked me like 6 hours later flight. This messed up all my plans and caused some issues. I was checking on filing claim and came across Airhelp.com which can help with the claim and seems I can be eligible for the compensation. Before I provide passport and other details, has anyone used Airhelp and is it trustworthy and legit?