---- * Given:
|''begin delivery transaction for client''| Joanna |''staff''| Bill|
|''book''|2||coffee dispenser|''on''|2005/05/08 09:01|''for''|2 hours|
|''pay with cash $''|14.18|
|''complete transaction''|

---- * Actions
|''time is now''|2005/05/08 09:02|

 * Partial delivery cancellations are not allowed.
|''begin transaction for client''| Joanna |''staff''| Bill|
|'''not'''|''cancel delivery''|2005/05/08 09:01|''city''|Auckland|''zone''|CBD|''address''|10 Princes St|''item''|coffee dispenser|''item count''|1|''for''|2 hours|
|''cancel delivery''|2005/05/08 09:01|''city''|Auckland|''zone''|CBD|''address''|10 Princes St|''item''|coffee dispenser|''item count''|2|''for''|2 hours|
|''refund cash $''|14.18|
|''complete transaction''|

---- * Checks
|''deliveries for client''| Joanna |
|''date''|''city''|''zone''|''delivery address''|''item''|''item count''|

|''client booking list''|Joanna|
|''rental item''|''count''|''start date''|''end date''|