Here is the pattern for asking until the answer is valid, now able to survive anything, including words, decimals and blank answers:

while True:
    try:
        n = int(input("How many tickets (1 to 10)? "))
    except ValueError:
        print("Please type a whole number.")
        continue
    if 1 <= n <= 10:
        break
    print("That's not between 1 and 10.")
print("Booked", n, "tickets.")

Converting is in the try; checking the range happens after it. continue goes straight back to asking. It is worth wrapping this in a function so you can reuse it: the exercise asks you to do exactly that.