Thank u for the nice conversation
but there are some mistakes
i am fine than u (( i am fine what about u ))
who old r u ?? ((how old are u))
any way
the conversation will be like this

Ahmed: hi
Ali: hi
ahmd : how r u?
Ali:fine, thanks what about u.
Ahmed: fine too.
Ali: where r u from??
Ahmed: i am from you, and u ?
Ali: Saudia Arabia <<for example>>
Ahmed : nice to meet u Ali
Ali:nice to meet u too.
Ahmed: I have to go, bye.
Ali: Bye