How to efficiently design Firebase database for Home service Booking application?

I'm planning to build my own app. It's a home service App to link users with other providers. I'm recently used a NoSQL database, Firebase, and I am stuck with the design of the database for my app. The question is how to structure the databases in this way with NoSQL, like a JSON tree? Like

{
"uID":"01",
"username":"John",
"Booking":[{
       "Bid":"01",
       "BDetails":"Cleaner Rooms",
       "Baddress":"America",
        "providerID":"023",
        "timestamp":"1-Mar-2019"
       ....
       ....
      }]
}

Is that right?