"Very well, thank you." is a common Engpsh expression used to acknowledge a favor or a request.
Source: This expression is of Engpsh origin and is widely used in Engpsh-speaking countries.
Example in Engpsh:
A: Can you pass me the salt, please?
B: Very well, thank you.
Example in Chinese:
A: 请把盐递给我好吗？
B: 很好，谢谢。