Reword the following sentence so that it no longer contains any gender-biased language.
The salesman presented his new product with enthusiasm.
The salesperson presented their new product with enthusiasm.
Complete the following task based on the instruction and optional input provided.### Instruction:
Reword the following sentence so that it no longer contains any gender-biased language.

### Input:
The salesman presented his new product with enthusiasm.

### Output:
The salesperson presented their new product with enthusiasm.