You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Let me give you an example: Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
The answer to this example can be: Answer: (A) User
Here is why: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

OK. solve this:
Sentence1: I have you booked in a yellow Honda, you can contact them at 07910205264. Can I help you with anything else today? Sentence2: There are three restaurants in the centre that serve European food with an expensive price range. Can I make a reservation for you at one of them? Sentence3: There are three different places: Eraina, Michaelhouse Cafe and Darrys Cookhouse and Wine Shop. Which would you like me to book? Sentence4: book a table for 7 people at 14:45 on saturday, Make sure you get the reference number Sentence5: I am looking for a restaurant in the centre of town Sentence6: I'm looking for European food. This is a special dinner, so something expensive. Sentence7: You can pick. I need reservations for 7 people on saturday at 14:45. Sentence8: Great. I need to find a guesthouse that has free wifi and free parking, the better half is so cheap. Sentence9: Eraina is perfect for your special dinner. Your table will be held for 15 minutes after your reserved time of 14:45. Your reference number is YQXGPLLY . Do you need anything else? Sentence10: Yes, I need a taxi to commute between dinner and the hotel. Can you please help me with the contact number and car type? Sentence11: arbury lodge guesthouse in the north is great. They are moderately priced, I can book you a room how many people are staying and when are you checking in? Sentence12: I can go ahead and do that for you. What time will you be leaving the restaurant? Sentence13: The booking for 7 is entered under the reference number ZW3FVVQZ . May I help with anything else? Sentence14: Can you please recommend one and book it for 4 nights? Sentence15: That is all I need. Sentence16: The 7 of us will be arriving on Saturday and staying 4 nights. Sentence17: There are 69 places to eat in Centre. Do you have a specific type of food or price range you are wanting? Sentence18: Actually, I need to go from the hotel to dinner. I want to arrive at the restaurant by 14:45. Sentence19: Thank you for contacting us today. Have a nice day. Sentence20: that's just fine, i actually have 21 options for you! Question: Who has spoken the sentence 16? (A) User (B) System
Answer:
Answer: (A) User