The Dhampir has the following flaws:

Has resistance to necromantic damage

You know the thaumaturgy cantrip. When you reach 5th level, you can cast the misty step spell once with this trait and regain the ability to do so when you finish a long rest. Charisma is your spellcasting ability for these spells.

Increased ability score

Dhampires are normally about medium size. Because of the half human Dna they have no issues with sunlight.

As with humans, a dhampirs' alignment is solely determined by the individual, though due to their unique heritage and the subsequent treatment by most of the world they easily fall to evil, and they also tend slightly toward chaotic alignments.

You have the ability to make a bite attack against either a willing creature, a creature that is charmed or grappled by you, or a creature that is incapacitated or restrained. You can use your strength for your bite's attack roll. On a hit, your bite deals necrotic damage equal to 1d6 plus the ability modifier used to make the attack roll. You may also choose to gain temporary hit points equal to the amount of necrotic damage dealt with this attack. You may recover hit points from this trait a number of times equal to your proficiency bonus.

You can cast the charm person spell once using this trait. Charisma is your spellcasting ability for this spell. You require no components to cast this spell using this trait, but your target must be able to see you. You can see in the Dark.
You can speak, read, and write Common and one other language of your choice.