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

[EX Q]: Sentence1: Yes as long as its in the same area and price range. I need a reference number too then please Sentence2: I'm looking for a cheap restaurant in the west area. Sentence3: I was unable to book that, would you like me to try something else? Sentence4: Okay that is all I need for now. Sentence5: I was able to get you into Thanh Binh. Your reference number is CLIBOL1Q . Sentence6: Let's go with La Margherita. Could you book a table for 2 people at 13:30 on Saturday? Sentence7: Thank you and goodbye. Sentence8: You have your choice of La Margherita, which serves Italian food, or Thanh Binh, which offers vietnamese cuisine. Question: Who has spoken the sentence 7? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: No thank you. Im finished. Sentence2: Allenbell is my favorite. It has four stars. The phone number is 01223210353. Shall I book that for you? Sentence3: Is there anything else I can help you with? Sentence4: I found 10 places, do you have a hotel style preference of gueshouse or hotel, or an area you prefer? Sentence5: You're welcome. How many people are in your party, and when will you arrive? Also, how long would you like to stay? Sentence6: I'm looking for a cheap place to stay that does not need free parking. Sentence7: It sounds fine. Do any of them include free wifi? Sentence8: There are three cheap guesthouses in the east area, however, they all have parking. Will this be okay, or would you like to look at a different area or price? Sentence9: Okay. Have a good day. Sentence10: That'd be great. Thank you. Sentence11: All of them include free wifi. Sentence12: What's the phone number and star rating of your favorite one? Sentence13: I will book on my own, thanks. Sentence14: I don't have a preference for the type but I would like a place in the east. Question: Who has spoken the sentence 7? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: You're welcome, enjoy your day. Sentence2: How about Downing College? It has free admission and is located on Regent Street/ Sentence3: I'd like to visit a college in the center of town. Could you help me find something interesting? Sentence4: That sounds great! Can I have their phone number and postcode, please? Sentence5: No, that was all I needed to know. Thank you, you've been very helpful. Sentence6: Downing College's phone is 01223334860 and their postcode is cb21dq. Can I help you with anything else today? Question: Who has spoken the sentence 4? (A) User (B) System
[EX A]:
Answer: (A) User