Help with expect command

Hi,

I am using following commands in my script to send a password to scp command. Everything is working fine except that I need a return code from the scp command. Do any one have an idea how to receive the exit code of scp command from expect.

/usr/bin/expect << EOF
spawn -noecho scp -pq user@$SOURCE_SERVER:$PATH/file /home/user/.
expect "ssword:"
send "$PASS_WORD\r"
interact
EOF