Hi, I’m in Chiang Mai for a few days and urgently need use of a computer for 2 hours on 3rd Dec for an online job interview that’s just come through. I need to give a presentation and access MS Teams so my phone is not an option. Ideally it would be somewhere with privacy so an internet cafe isn’t a good option, unless there’s one that has private booths or not many computers? My hotel doesn’t have a computer I can use. Does anyone please have any suggestions? Thank you in advance. 

Best option might to check out one of the coworking places like Camp at Maya Mall or Yellow(they have some small rooms but most people bring own their machines).  Really can't think of any place that meets your requirements.  Plenty of places  offer internet access on old pc's but no privacy and often noisy. 

Type the following search string into Google   "facilities for digital meeting chiang mai"  seems to show several options or failing that contact Chiang Mai University and explain your situation and hopefully they can help.  Best of luck.