What better way for a veterinary consultation record ?

What better way for a veterinary consultation record ?

Hello , I need to create a query form for animals.
1- How do I create queries in the customer file so that the history be stored and has good usability mobile? And may I add the service values ​​at each visit ...
2- How to make two date a form fields appear on a calendar ? I need to schedule more than one procedure but could only configure each on a different schedule.
Thank you!