Расшифровка записи
Dialogue A
A: Good morning! I need to check in for the flight to Berlin.
B: Morning. Your passport, please.
A: Could I have a window seat?
B: Of course you can. Do you have any luggage?
A: Yes, this suitcase and the bag, that's all.
B: Okay. You can take the bag onboard, if you want. Here's your boarding pass.
A: Thank you.

Dialogue B
A: Hello, I have a reservation here, my name is Mark Bateman.
B: Yes, Mr. Bateman, welcome to the Royal Crown. Your room is 308 on the third floor. Here's the key.
A: Thanks.
B: Do you want any help with your luggage?
A: No, thanks.
B: If you need anything, just call us from your room, please. Dial 1.
A: Okay.
B: Enjoy your stay!

Dialogue C
A: Okay, Mrs. Riddell, where were you yesterday from 9 till 10?
B: In my room in the hotel.
A: Were you alone?
B: No, with my daughter.
A: Did you hear any noise, Mrs. Riddell?
B: No, I'm afraid not. Our luggage was delivered at about 9, we went to bed early, as we were tired after the flight.
A: Okay, thank you. Please call us if you remember any more details.
B: Sure, I will.

Dialogue D
A: Where should we go for our vacation, Matt?
B: I don't know yet.
A: How about Italy? If we go in the spring, we'll probably get a cheap flight and a hotel discount.
B: Okay. We'll go wherever you want, but we'll discuss it when the football match is over.
A: Agreed.
B: And could I have a cup of tea and some chocolate cake, please?

Пояснение . Исходя из текста, единственный верный ответ под номером 3.

Ответ: 3.