Please find answers regarding your queries pointwise below:
Query1: Can you please tell me the new changes of prices and days are referred to “booking” sections?
Because I did not see any difference at the price under the title.
Response: Actually, we are not quite clear with the query as the layout under booking tabs has been completely changed as well as there is date picker option to select the date which was not available previously.
Also, there are different changes made under booking sections.
Please make sure that you have updated stable version of WP Travel plugin.
Also, please make sure that ‘Switch to V4’ option has been enabled by going to Admin Panel > WP Travel > Settings General as shown in screenshot below: