To assign a flag:
Open the Conversation.
Next to the message you want to flag, tap .
In the Manage Flags dialog, perform one of the following actions:
To assign a flag to a particular person, tap next to the person you want to flag, then select the type of flag to assign.
To assign flags to everyone (other than yourself), tap in the action bar to display the actions menu, tap Flag Everyone Else, then select the type of flag to assign.
You can select from the following types of flags:
Not Flagged
For Your Information
Please Reply
Please Reply - Urgent
To clear a flag assigned to you:
Tap the flag you want to clear.
In the Manage Flags dialog, tap Clear next to your flag.
Tip: To view all flags assigned to you, tap in the action bar to open the slide-out navigation, then tap Flags.
To clear a flag assigned by you:
Alternatively, you can open the Manage Flags dialog by tapping a flag while viewing messages in the Conversation.