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

Ex Input:
Sentence1: Yes. I will be staying 5 nights starting Friday. Sentence2: Im also looking for the cow pizza kitchen and bar. Whats the address for it? Sentence3: its address is Corn Exchange Street. what else can i do for you? Sentence4: Oh, expensive please. I do hope it is a guesthouse? Sentence5: You have helped me with everything I need. Thank you. Sentence6: Anytime. Enjoy your visit. Sentence7: I'll be staying for 5 nights. Sentence8: Unfortunately they are both hotels. Sentence9: Booking was successful. Reference number is : GQPN80PK . Is there anything else I can assist you with today? Sentence10: Okay I've got three options here. Would you like a cheap or an expensive price range? Sentence11: Can you help me locate a hotel to stay at that has free parking and a 4 star rating? Sentence12: Oh. I would really prefer a guesthouse. How about the moderate price range? Sentence13: Okay, I recommend The Acorn Guesthouse. Would you like me to book there? Sentence14: NO problem. How long are you staying? Sentence15: The location isn't important. I need to book it for Friday, please. Sentence16: They are moderate, it is a gastropub, in case you need them, the postal is cb23qf and the phone number is 01223308871, can I assist with anything else? Sentence17: I have 9 guesthouses in the moderate price range, do you have a location preference? Sentence18: I need it's price range please Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I don't care when I arrive, but I need to leave after 10:00. Sentence2: Perfect, thanks so much for your help. Sentence3: Yes. Wednesday please. Sentence4: I have successfully make a booking for 5 on that train. Sentence5: Sounds great. Can I get their postcode please? Sentence6: Is there anything else I can assist you with today? Sentence7: Can you find me a train from Stansted Airport? Sentence8: Alright, thanks for contacting Cambridge TownInfo centre! Have a good day. Sentence9: TR0467 leaves the airport at 10:24. Would you like tickets for that train? Sentence10: No that is everything. Have a good day. Sentence11: Queen's college is an excellent choice. Sentence12: The postcode for Queen's College is cb39et. And the reference number for your train (booked earlier) is WMUC700A . Sentence13: Can I have the reference number please? I'm also looking for some places to go, maybe a college in the west. Sentence14: Not a problem. Any day in particular? Sentence15: There are plenty of options. Where will you be arriving and do you have a time preference? Sentence16: Yes, for five please. Question: Who has spoken the sentence 14? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Ok. I can help you book a taxi from Scudamores Punting. Where do you want to go from there? Sentence2: Yes, are there any kind of boat tours available through town? Sentence3: Great! I have booked your taxi, which should be a White BMW and its contact number is 07719541714. Sentence4: I'd like to stay on Wednesday, Thursday, and Friday, please. Is that available? Sentence5: To my hotel. Sentence6: In the centre of town, if possible. Sentence7: I'm looking for a guesthouse that offers free parking. Sentence8: There are a few. Do you care what part of town? Sentence9: It was a pleasure assisting you. Enjoy your stay. Sentence10: May I assist you with anything else today? Sentence11: I have many options available. Would you like to stay in a particular area of town? Sentence12: Of course! When would you like to stay? Sentence13: The aylesbray lodge guest house meets all of your requirements and has a 4 star rating. Would you like me to book a room? Sentence14: That's all I need. Thanks Sentence15: Yes, actually I prefer to stay in the south part of town. And I would love something that offers free wifi. Sentence16: Great! Your room has been booked for 3 nights starting Wednesday and your reference number is NVZNJX13 . Is there anything else that I can help you with? Sentence17: Yes, could you make a reservation for 8 people, please? Sentence18: Great, thank you! Sentence19: Yes there are two companies that offer boat tours in the centre of town, Scudamores Punting and The Cambridge Punter. Would you like more information? Sentence20: Sure but I also need to book a taxi to leave the attraction by 6:45. Question: Who has spoken the sentence 15? (A) User (B) System

Ex Output:

Answer: (B) System