The third feature of cryptocurrency is its distributed ledger. Your transaction request on a blockchain will not be delayed because of any public holiday, or be charged with a high transaction fee due to the bookkeeper wanting to make a profit; or suffer a loss from the bookkeeper’s dishonesty.
All of these is done by a ledger distributed across the network. Your transaction record will be consistent and not be affected even if you lose a copy of it. This ledger is maintained by the entire network and every full node has a backup.
If you transfer 0.5 Bitcoin to Mr Bull, both of you can just refer to the network record to see if the transaction is completed or number of confirmations etc. It is very transparent and fair.