8086 program to count the number of vowels in a string

This is an 8086 program to count the number of vowels in a string. If you have any doubts, please let me know.

.MODEL SMALL
.DATA
inp db 0ah,0dh,'enter the string: ','$'
msg db 0ah,0dh,'the number of vowels: ','$'
vowel db 'a','A','e','E','i','I','o','O','u','U','$'
databuf db 100,0,100 dup('$')
.code
START:
mov ax,@data
mov ds,ax

lea dx,inp
mov ah,09h
int 21h

lea dx,databuf
mov ah,0ah
int 21h
mov si,dx

lea dx,msg
mov ah,09h
int 21h
       
mov bl,00h
check:  lea di,vowel
mov cx,000ah
mov al,[si]
cont:
cmp al,[di]
je found
inc di
loop cont
jmp next
found:  inc bl
next:   inc si
cmp databuf[si],0ah
jne check
mov dl,bl
add dl,30h
mov ah,02h
int 21h


.EXIT
END START