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

Sentence1: Sure. What area would you like to stay in? Sentence2: yes postcode is cb39lh Sentence3: I'd like to stay on the westside, at a place with free parking and WiFi. Sentence4: Can you help me find a moderately priced place to stay? Sentence5: There is the Hobsons House. It is nice and is a 3 star guesthouse. Sentence6: Could you give me the postcode. Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User

Sentence1: yes book for 4 people and 5 nights from sunday Sentence2: I hope you have a great stay. Goodbye. Sentence3: I would prefer a college in town centre. I'll need the phone and address also. Sentence4: I am also looking for a place to stay in the centre. Sentence5: No that will be it thank you for your help. Sentence6: Booking was successful. Reference number is : 7RA903FR . Can I help with anything else today? Sentence7: Ok, there are 13 to choose from. Some have entrance fees. Sentence8: I'm looking for an attraction in the category of college in the center of town Sentence9: I have the cityroomz hotel in the center. Would you like me to make a booking for you? Sentence10: Moderate range please. Sentence11: What price range you would like? Sentence12: Sure thing, Downing college is located at regent street and phone is 01223334860 anything else I can assist with? Question: Who has spoken the sentence 11? (A) User (B) System
Answer: (B) System

Sentence1: Yes, please. I only need one ticket. Sentence2: I am leaving Peterborough on Sunday and I need to arrive by 10:15. Sentence3: Thank you for contacting us and have a nice day. Sentence4: I want to keep it in the moderate range please Sentence5: The bridge guesthouse is in the south with 3 stars. They have internet and parking. Would you like me to make a reservation for you? Sentence6: I need to arrive by 10:15. Sentence7: Sure there phone number is 01223247942. Is there anything else I can help you with today? Sentence8: Sure, I would recommend the Aylesbray Lodge guesthouse. It is 4 stars, includes wifi, parking and is in the moderate range. Would you like me to book it? Sentence9: Booking was successful, the total fee is 13.2 GBP payable at the station . Reference number is : 676ITDRH . Can I help with anything else today? Sentence10: You sure can! Where will you be traveling from, and on what day? Sentence11: I actually want a hotel with 3 stars if possible Sentence12: No, that's all. good bye. Sentence13: When do you want to arrive by? Sentence14: Can I catch a train to Cambridge? Sentence15: Yes, I am going to need a place to stay while I'm in town.Can you recommend a guesthouse in the south? Sentence16: TR0774 arrives closest to that time, it will arrive by 10:09. Would you like to book a seat? Sentence17: Can I please have their phone number? Sentence18: What price range would you like? Question: Who has spoken the sentence 3? (A) User (B) System

Answer: (B) System