how to check similar records base on two columns

[Krit_Gable]

Suppose I have two  Columns I want to check similiar records like this

Destination1	Destination2
A	B
A	D
B	A
B	C
C	A
C	B

I would like to check similiar record from Destination1 <-> Destination2 like A->B and B->A is similiar I would like to filter it out

so the result would be like

Destination1	Destination2
A	B
A	D
B	C
C	A

Is there any idea to clean the duplicated data out?

Thanks in advance

[Inactive User · Accepted solution]

Answer attached.

[Krit_Gable]

Thank you for idea