People say "hard work", and the best reply can be said "it's okay, it should be, thank you for your concern". This sentence not only expresses his own attitude, but also responds to the other party's concern, shows that his attitude towards hard work is positive, and also expresses his sense of responsibility and professionalism. Such a response can make the other party feel their professionalism and work attitude, and establish a positive and positive image for themselves. Responding to "thank you for your concern" can make the other party feel your sincerity and friendly attitude, close your relationship with the other party, and establish a good communication atmosphere.
It is also possible to say "this is what I should do". Of course, the meaning of this sentence varies depending on the specific context. If the other party's request is a bit excessive, and I do extra work for the other party out of morality or a sense of responsibility, this sentence actually contains complaints and irony, and will make the other party reflect on their words and deeds. If the relationship between the two parties is very good and you are willing to help, then this sentence clearly expresses your attitude and brings the relationship between the two parties closer.
In contrast, if you simply answer "you're welcome" or "you're okay", although it expresses a polite attitude, it may make the other person feel that the response is too blunt or cold, which will affect the effectiveness of the communication. If you say "it's okay, it's not hard" too enthusiastically, it may make the other party feel that they are not able to work well or that they are not serious enough at work.