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

Sentence1: Yes sir! Soul tree nightclub is a good one. they are at 8 market passage, postal is cb23hx and phone number is 01223519224, is there anything else that I can assist with? Sentence2: Pick a good one for me. I need the phone number and postcode for it too. Sentence3: Sala Thong is an expensive Thai place in the west. They're located at 35 Newnham Road, cb39ey. Sentence4: Can't wait to come party at one of your nightclubs in town. Sentence5: There are 5 nightclubs in the centre and one in the south. Would you like more information on one of them? Sentence6: Thanks, that is all for today. Goodbye. Sentence7: You're welcome, have a good day. Sentence8: Can you give me information on a restaurant called Sala Thong? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: I am planning a trip in Cambridge and need a place to stay with free parking. Sentence2: Excellent. Can I book that for 2 people for 2 nights starting on Tuesday Sentence3: I have many different options available. Let me ask, do you have a certain price range or area in mind? Sentence4: Thanks i will find you one.Thanks a lot Sentence5: I have no particular price range, but would like a guesthouse in the north part of town. Sentence6: That narrows it down to about 9 different options. Most offer both free parking wifi. If you would like my personal recommendation, I would say go with the Hamilton Lodge. Sentence7: Booking was successful. Reference number is : 152UJWIK . anything else today? Sentence8: Yes, I need to find a train on Tuesday from Cambridge to London Liverpool Street. Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User

Sentence1: I have a black honda for you with contact number 07810177049. Sentence2: Thank you Goodbye Sentence3: I am going to visit queens' college Sentence4: No, I am all set. Goodbye. Sentence5: I need a tax arriving by 17:00. Sentence6: What is your departure site? Sentence7: Wonderful. Thank you. Sentence8: Sure! where are you going? Sentence9: I'm departing from ask. Sentence10: Can I assist you with anything else? Question: Who has spoken the sentence 4? (A) User (B) System

Answer: (A) User