Can I only buy a one-day ticket when booking a hotel there?
The “dingni” you mentioned may refer to a specific attraction or hotel. Usually, hotels provide accommodation services, and one-day tickets are usually used for scenic spots or theme parks that require multiple admissions. If you are referring to a hotel, then generally the hotel will not provide one-day tickets, because the hotel provides accommodation services, not tickets for one-day tours.
If you would like to know if you can purchase a stay for just one day, we recommend contacting the hotel directly to inquire about specific policies. Different hotels may have different rules.