Here is the conversation in the correct order:

1. Hello! Dolores speaking...
2. Ah, yes. Hello. I’d like to enquire about flights to Hong Kong from Kennedy Airport in New York, please. I’m off to a conference at the end of the month - Thursday 22nd until Tuesday 27th. Could you tell me about the flight availability and prices?
3. Yes, sure. I understand. How many of you will be travelling?
4. Ah, it’s just me.
5. And how much will that be?
6. All right. One seat... economy class... New York - Kennedy to Hong Kong Airport.
7. Well, I’d like to go first class, but unfortunately I’ll have to go economy - company rules, you see.
8. Let me see. To qualify for the discount rate, you need to stay over a Saturday. Yes, that’ll be $830.
9. OK. Can I book that, then?
10. Certainly. Do you want to go economy, business or first class?
11. Certainly.