Exit out from loop on incorrect password in expect TCL shell script

I have written a code snippet in TCL expect to connect from Server 1 to Server 2 using ssh. Users already may have set passwordless communication between Server 1 and Server 2, or it may ask for a password. Code should handle all these three below possible scenarios: 1. If passwordless login is enabled between Server 1 and Server 2 2. No Passwordless login is enabled, Password: prompt is displayed 3. If user enters incorrect Password, a second Password: prompt is expected where ctrl+c will be entered and will exit. Please find below the code #!/usr/bin/expect -f lassign $argv 1 2 spawn ssh -o StrictHostKeyChecking=no $1@$2 expect { "*]#" { send -- "sleep 0\n" } #Prompt when passwordless is active and user have logged in "Password: " {send -- "$2\n" #Password prompt when no passwordless is active. exp_continue } "Password: " {send -- "^C" } # Second Password Prompt when the wrong password is entered in previous step. From here code should exit with a message } expect "*]#" # After SSH is successful I am not able to handle the second Password: prompt for an incorrect password where the code should exit with an appropriate message to the user. I am running the script ./testssh.exp username password.