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

Sentence1: I would like a moderate price hotel in Cambridge. Sentence2: Either one is fine. I need to book it for 5 nights on Wednesday. There are 4 people. Sentence3: I'm not concerned about the area but it doesn't need to include internet. Sentence4: I will work on that and be back with you in a moment. Sentence5: Hi, I am planning a trip and could use some advice on a place to stay. Sentence6: There are two 2 star hotels in the north part of town. Ashley Hotel and Lovell Lodge. Both include free internet and parking. Do you have a preference? Sentence7: Sure. What is your price range and what side of town will you be interested in? Sentence8: I have some moderate priced hotels in the north and center. Do you have a location preference? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: looking for a train going to Cambridge. Sentence2: How about TR3350 that leaves at 05:17? Sentence3: you can book it. get me the reference number too Sentence4: I am leaving on Sunday and need to arrive by 13:00 Sentence5: Thank you for using our services. Sentence6: Thank you that is all I needed. Sentence7: W8YHJKSV is the reference number Sentence8: What day and time are you wanting to travel? Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: Please find me a taxi? I'm at the el shaddai and I need to arrive by 21:15. Sentence2: I have a white bmv with a contact number of 07785490051. Sentence3: That will be fine, thank you very much. Sentence4: Thank you for contacting us and have a nice day. Sentence5: I'm going to cocum. Sentence6: I am finished. Thank you. Sentence7: What else can I do for you today? Sentence8: Okay. I will need your destination first. Question: Who has spoken the sentence 5? (A) User (B) System

Answer: (B) System