"You're welcome" is a common phrase that can be used to respond to someone who has thanked you. It is a way of saying that you don't mind helping or doing something for the other person. Other phrases that can be used include:

No problem
No worries
It was nothing
Don't mention it

Note that these phrases are used to be popte and show appreciation for the other person's gratitude. They are not intended to be rude or dismissive.