Help with coding

Question

I will answer a question which it says: Do you want to buy more tickets?

When I write "No" it should say: "Have a nice trip!" And then it will end.

For the rest I'm writing to that question except Yes & No, it should say "Error" and will ends.

Answer 1

I have loop for "Yes"

Answer 2

simple loop with 1 if, 1 else if and else statement. Do Java course and you will be able to do this.