Here is the completed dialogue:
Bill: I'd really like to go abroad this summer.
Ann: Where would you like to go?
Bill: The Himalayas? What can you do there?
Ann: Look. Here's the advert.
Bill: What does the advert say?
Ann: They offer an adventure holiday there!
Bill: Wow! Sounds interesting.
Ann: Yes, rock climbing and mountaineering are on the list.