Anytime (=You're welcome)

[yukiera]

Hi,

Can I say 'Anytime' as a response for 'Thank you' even if I won't have any chances to see him/her again?

 

[Franco-filly]

Yes, it sounds fine to me.
I think it would be understood as "I would help you again if ever the opportunity arose"

 

[Orble]

Yes, I agree with Franco-filly and believe that “anytime” is an acceptable traditional response. Like many of these stock phrases, it isn’t meant to be taken literally.

Where I come from the usual informal response to “thank you”, in a shop for example, is, “No worries!” which is also not literally meant.