Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:

Convert text to sql: Find the most popular room in the hotel. The most popular room is the room that had seen the largest number of reservations. | rooms : roomid , roomname , beds , bedtype , maxoccupancy , baseprice , decor | reservations : code , room , checkin , checkout , rate , lastname , firstname , adults , kids | reservations.room = rooms.roomid | 

### Response:

select _ from _ group by _ order by count ( _ ) desc limit _ | select rooms.roomname from reservations join rooms on reservations.room = rooms.roomid group by reservations.room order by count ( * ) desc limit 1