@Julieta168
The community for Spanish language is: Community Español
Google translates:
"Hello! What happens if I already have a reservation made, then I saw an apartment that I liked better and I asked that person for the reservation? (Who has to accept me in the next 24 hours?) I don't want to cancel the first one just in case the new host doesn't accept me and I'll be left with nothing. someone knows ? "
If you sent a booking request to the second appartment, then the host must accept or decline within 24 hours. Cancelling your first reservation will probably cost you money (depending on the cancellation policy attached). It is up to you to decide which risks you want to take....