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

[EX Q]: Sentence1: Galleria serves European food and is in the centre part of town and has a moderate price range. Sentence2: No restaurants serving australasian food can be found. May I find another type restaurant for you? Sentence3: Looking for someone that serves Australasian food? Sentence4: How about European food? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I need to leave on Wednesday sometime after 16:30. Sentence2: There are 21 guesthouses that include parking. Is there a price range or area you would like to stay? Sentence3: I need some help choosing a train from Cambridge to London King's Cross. Sentence4: It doesn't matter, we will also need wifi, and will be staying for 2 nights, starting on Monday. Sentence5: That sounds great. Can you go ahead and book it for me? Sentence6: I would recommend the Alexander Bed and Breakfast then. Sentence7: Your welcome! Please have a nice day! Sentence8: I have a train leaving at 17:00 and arriving at 17:51 would you like to book this? Sentence9: That's lovely. We also require lodging. Could you help find a guesthouse with free parking? Sentence10: Thanks so much! I'm all finished now, goodbye! Sentence11: Yes please make a booking for 3 people. Sentence12: Alright I booked it. Reference number is I5AR5Q3J Sentence13: The booking was successful. Reference number is : IGMRVY4Y Sentence14: The next train leaves Cambridge for London Kings Cross on Friday at 05:00. What day do you want to travel? Question: Who has spoken the sentence 9? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Where is your location? I can direct the police to where you are. Sentence2: The Parkside Police number is 01223358966. Would you like me to call them? Sentence3: Of course. The postcode is CB11JG and it is located in Parkside. Anything else? Sentence4: yes please i need help Sentence5: Thanks for using our service, and I hope your day gets better! Sentence6: No, I think that's it for right now. Thanks. Sentence7: I need help, I was in a car accident dispute. Sentence8: Can I just have the address and postcode for the police station, please? Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]:
Answer: (B) System