Question

خیلی هم دلت بخواد!

Answer 1

You should consider yourself lucky.

Answer 2

You wish

You bet

Comments

That may be a little different:

http://dictionary.cambridge.org/dictionary/british/you-bet

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Its more of چرا كه نه- حتما- 

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!You wish

بی همین خیال باش

خواب دیدی خیر باشه