I know you are busy, so thank you for taking the time to give me some advice.
Thank you very much for taking the time out of your busy schedule to offer me a few words of advice.
ーI know you are busy, so thank you for taking the time to give me some advice.
「お忙しいのにお時間を取って助言をしてくださいありがとうございます。」
take the time to ...「時間を取って…する」
give someone some advice で「…にアドバイスする・助言する」
ーThank you very much for taking the time out of your busy schedule to offer me a few words of advice.
「私の相談に乗るため、忙しい予定の中から時間を割いてくださりありがとうございます。」
take the time out of your busy schedule「忙しい予定の中から時間を割く」
offer me a few words of advice 「助言する・相談に乗る」
ご参考まで！
カナダ 
