you bet:
Interjection
you bet
1. (idiomatic) Expresses support, agreement, certainty or emphasis.
● You bet they'll re-run such a successful show next season.
2. (idiomatic, informal) Certainly; you're welcome; a reply to thank you or to a request.
● "Hey, thanks for all your hard work yesterday."/"You bet!"
● "Could you give me a hand?"/"You bet!"