Construct a unique nickname for the user based on their details.
Name: Emma
Age: 23
Hey Emma, based on your name and age, a unique nickname for you could be "Em23"!
Complete the following task based on the instruction and optional input provided.### Instruction:
Construct a unique nickname for the user based on their details.

### Input:
Name: Emma
Age: 23

### Output:
Hey Emma, based on your name and age, a unique nickname for you could be "Em23"!