How to add check availability option for the hotels? Like below link
Dear @chrisrajamaya ,
thank you for reaching out us. First of all let me welcome you here on Connect, the official forum for Local Guides.
About your question the Check-In Check-Out options are specific features related to claimed Hotel businesses. Once you claim you business under GMB, Hotels have access to specific information only related to their category and those information can be managed in the GMB business profile. You can read more information about which information can be managed on the specific support article.
Since you are new here I’ll invite you to read Your guide to Connect to make yourself comfortable and understand how to best use Connect. A good reference to start writing great contents it How do I write a post on Connect and How do I follow the original content guidelines on Connect. And if you need any help you can always refer to our Help Desk. On this matter I’m tagging here @Giu_DiB to move your topic under the HowTo board.
Finally, if you wish, you could introduce yourself to the community and the other Local Guides by writing something about you in our monthly introduction post: Introduce Yourself October 2020.
Hello @chrisrajamaya ,
Welcome to Connect! I am very happy to see that you already received assistance from @LuigiZ ! As he said, you can find further information on the Google My Business Help page.
I wanted to let you know that I moved your post to the relevant section, the How-tos board, which is more appropriate for this kind of questions. I am also marking Luigi’s comment as solution. 
To know more about the topics, you can take a look at the following article: How to choose a topic for your Connect post.