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

Sentence1: Are there any with a 5 star rating? Sentence2: I'm looking for a place to stay with free wifi. Can you help me find something moderately priced? Sentence3: You are booked at the acorn guest house. Reference number is ROCCFCM6 . Sentence4: Thank you so much, that is all I need. Sentence5: Unfortunately, none of them have a 5 star rating. Sentence6: Are there any with a 4 star rating? Sentence7: We have plenty of moderately priced options with free WiFi. Do you have any additional preferences? Sentence8: Oh yes, several. Are there any addition preferences on those? Sentence9: Great, enjoy your stay. Bye. Sentence10: Nope, any 4-star moderate place with wifi will be fine. Could you book a room starting Saturday for 3 nights, 5 people? Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: You pick the area as I don't have a preference. Sentence2: I found swimmingpools in the areas of east, north and centre. Which would you prefer? Sentence3: I am departing from stevenage on thursday. Sentence4: Parkside Pools is located at Gonville Place. Is there anything else you would like to know? Sentence5: Parkside Pools is a great place located in the centre, would you like more information? Sentence6: Yes please. Get me the address Sentence7: The TR9547 gets into Cambridge from Stevenage at 20:43. Will that work? Sentence8: Have a great day! Sentence9: Yes, I just needed info for now. Thanks for your help. Goodbye. Sentence10: I need a train, on Thursday. Arriving by 2145. Sentence11: Where will you be departing from? Sentence12: i just want a place to go with a swimming pool. Question: Who has spoken the sentence 9? (A) User (B) System
Answer: (B) System

Sentence1: Can I help you with anything else? Sentence2: Yes. Need it in the east. Star of 4 and do not care about parking, but do need it to be a hotel not guesthouse. Sentence3: I'd like to stay in the east. I'm looking for a 4 star hotel. I don't need any parking. Sentence4: Sorry, Im her husband, Ill take over the call, my wife is a little picky and confused. Please book the guesthouse, 4 people, 4 nights starting wednesday. Sentence5: Thank you for calling Cambridge TownInfo centre! It was a pleasure to help you, I hope you enjoy your time in Camridge! Sentence6: I'm sorry, after taking a second look, the Autumn House is not located in the east area. Would A&B Guest House be okay? It's also 4-star. Sentence7: I'm afraid that I don't have that information. Can I help you with anything else? Sentence8: There aren't any 4 star hotels available in the east. Sentence9: If that information is not available, then that's all I need today. Sentence10: i need a place to stay Sentence11: Between Victoria Road and The River, cb43px. Would you like to know more about the place? Sentence12: Do you have any places that are hotels, not guest houses? Sentence13: Okay that booking was successful and your reference number is SYX1AD7L . Sentence14: Okay, I recommend the Autumn House. It is a guest house in the cheap price range. Would you like me to book a reservation? Sentence15: No, thank you. Sentence16: I am sorry but there are no 4 star hotels in the east. Is there another area you would like to look at or possibly reserve the guesthouse? Sentence17: Great! I was also interested in finding a swimming pool in the north. Sentence18: I guess I'll book the guesthouse for 4 people, 4 nights starting wednesday. Sentence19: Sure, do you have an area of town you want to stay in? Sentence20: I need their entrance fee please Sentence21: I'm afraid I don't have that information available. Can I help you with anything else? Sentence22: Sure, Jesus Green Outdoor Pool is a nice one. It is located between Victoria Road and the River. Sentence23: Yes, can I have the address and postcode, please? Sentence24: What is the entrance fee? Question: Who has spoken the sentence 23? (A) User (B) System

Answer: (B) System