so you don't need to place an else in the first:
choice = menu("Do you want to see the opening times of this recycling centre?","Yes","No")
if choice == 1
new_data(selectedplaceindex,1:3)
end
choice2 = menu("Do you want to navigate there?","Yes","No")
if choice2 == 1
new_data(selectedplaceindex,4)
elseif choice2 == 2
menu("Thank you, keep recycling!")
end