Analyze the given dialogue and name two emotions displayed by the user.
User: I can't believe it's been three years since the accident.
The two emotions displayed by the user could be disbelief and sadness.
Complete the following task based on the instruction and optional input provided.### Instruction:
Analyze the given dialogue and name two emotions displayed by the user.

### Input:
User: I can't believe it's been three years since the accident.

### Output:
The two emotions displayed by the user could be disbelief and sadness.