im not getting the correct output for the test case using the given code

$/*$

Enter your query below.

Please append a semicolon $"$;$"$ at the end of the query

$*/$

SELECT

sender$,$

MIN$($dt$)$ AS sequence$\_$start,

MAX$($dt$)$ AS sequence$\_$end,

COUNT$(*)$ AS transactions$\_$count,

ROUND$($SUM$($amount$),6)$ AS transactions$\_$sum

FROM

transactions

GROUP BY

sender$,$

FLOOR$($UNIX$\_$TIMESTAMP$($dt$)/3600)$

HAVING

transactions$\_$count $>=2$

AND transactions$\_$sum $>=150$

ORDER BY

sender ASC,

sequence$\_$start ASC,

sequence$\_$end ASC;