I am flying EVA London-Bangkok at the end of December, returning end of March. One month Northern Thailand, one month Laos and the last month in Southern Thailand. What do I do about proof of onward travel? Has anyone had any experience of flying EVA? Do they even ask for proof? Would a bus ticket Non Khai-Vientiane suffice or do I need a flight ticket out of the Country? Any advice would be appreciated 🙏