The conversation between human and AI assistant.
[|Human|] Classify the dialogue into one of the following categories: 1) making or cancelling orders; 2) shipping & delivery; 3) change and return; 4) technical issue with website or app.
[|AI|] The category of this dialogue is: 1) making or cancelling orders.
[|Human|] 
Classify the dialogue into one of the following categories: 1) making or cancelling orders; 2) shipping & delivery; 3) change and return; 4) technical issue with website or app.