CREATE TABLE table_37192 ("Name" TEXT, "Type" TEXT, "Entered service" TEXT, "Water depth" TEXT, "Location" TEXT, "Customer" TEXT)

What was the water depth that entered service in 2001 named Cajun Express?
SELECT "Water depth" FROM table_37192 WHERE "Entered service" = '2001' AND "Name" = 'cajun express'
SELECT "Water depth" FROM "table_37192" WHERE "Entered service" = '2001' AND "Name" = 'cajun express'