Hello, The process of canceling my cousin's [Air China Bangkok Office](https://rightcheckin.com/airlines/air-china-city-sales-office-in-bangkok/) ticket at their office was quite simple. He received thorough explanations of the cancellation policy and assistance with the refund process from the staff. The return process took a while, though, which was a little annoying. The customer support staff was courteous and competent despite the wait. They made sure that the required paperwork was correctly completed and gave updates. He had a good experience overall, although waiting for the return took some time.