In Gloria Kempton's writing reference guide on writing Dialogue, she tells us novelists that dialogue is an accelerator. The faster you get your fictional people talking, the faster the scene moves. Cutting out any narrative or action sentences not needed will speed up your story. And she advises that you cut out any speech tags so your dialogue is at bare bones.
When creating dialogue for your characters Gloria Kempton in her book called Dialogue, tells aspiring novelists how to set the pace with dialogue, how to inject emotion into characters' dialogue and how to heighten the tension, also using dialogue.
Setting a mood and conveying the characters emotions through dialogue is one of the most effective ways to bring your story to life on the page. Creating dialogue that is full of a character’s fear, sadness or joy is the stuff that moves readers so that they engage with your character on an emotional level.