Hello everybody! I need your help for my master's dissertation. It's about self-service in aviation and if customers' needs are met. If you have taken at least one flight in the last 3 years, you fit exactly into my target group. Thank you very much!!! It's much appreciated!!! As this is a quite new topic you significantly contribute to the academic literature!

Here is the link: https://docs.google.com/spreadsheet/...ktbmc6MQ#gid=0

Thanks!