What should I do about my flight cancellations and layover concerns in Bangkok?

The user is facing potential challenges with flight layovers and cancellations after changing their itinerary. Initially, they booked a flight from CR to BKK with Thai Smile and onward to the USA via Taiwan with Eva Air, but the layover time in BKK was insufficient. The user purchased a ticket from CR to DMK instead and is unsure how to proceed regarding the unused flights and the risk of being treated as a no-show for their second flight if they skip the first. Commenters suggested calling the airlines for clarification, emphasizing that if the flights are booked as a single ticket, missing the first leg might void the entire itinerary. They also proposed getting an earlier flight to avoid issues and to potentially book directly with the airline instead of through Expedia.