What should I do if my flight to Bangkok was cancelled and I'm worried about my COE?

The user is seeking advice after their flight from the US to Bangkok was cancelled, expressing concern about whether they need to redo their Certificate of Entry (COE) if they rebook a flight on the same day. Several comments suggest that embassies are usually quick to update COEs for cancellations, and there's often a disclaimer allowing rebooked flights. The discussion reveals issues with the airline's communication and notes frustrations in contacting the embassy for clarification.