Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
obliging [əˈblaɪdʒɪŋ] adj (helpful) любе́зный*любе́зен
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
oblige [əˈblaɪdʒ]
vt (do a favour for) обя́зывать (обяза́ть*perf)
(force) to oblige sb to doобя́зывать (обяза́ть*perf) кого́-н +infin
I'm much obliged to you for your help (grateful) я о́чень обя́зан Вам за ва́шу по́мощь
anything to oblige! (inf) (я весь) к ва́шим услу́гам!
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: