Thank you for the info, Geogramatt and Pongtong.

I will go to Myanmar in October. I heard (from a German travel agency) there might be serious trouble with finding accommodation in both Mandalay and Bagan. Can you confirm that or is this only true for Hotels you can book in advance only?

Would you recommend to find a (local) travel agency in e. g. Yangon and have something arranged?

grateful for any insider info,
Julia