Translation of whisper in Spanish

The guy at the reception was pretty friendly and gave me keys of the hotel's suites. The first suite was again without windows. I returned and asked for the same with windows. He gave me other keys.
Oh great, i want to learn English with you. It am so happy that you will help me. Thank you lots and lots. Where do you live? I live in Switzerland, near the city of Basel. I'm a student of economics.
Many thanks for your letter. I am delighted to tell you that I have passed my exams and am looking forward to the next year. Meanwhile I am planning a trip to Costa Rica and some places around there.