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

Ex Input:
Sentence1: It's cb12bd. Anything else I can get you? Sentence2: How about something in the south and moderate price range? Sentence3: I'll take Rice House, what's the postcode? Sentence4: There are 3 cheap chinese restaurants in the centre of town: Charlie Chan, Rice House, or Golden House. Would you like me to book any of these? Sentence5: Sure let's try chinese food. Sentence6: I was not able to find any restaurants matching your requirements. Sentence7: I'm still not finding anything. Would you like me to search a different part of town or a different food type? Sentence8: You're welcome. Have a great day! Sentence9: That's all. Thank you. Sentence10: I am looking for a cheap gastropub restaurant in the centre of town Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: That's all I need for now. thank you very much. Sentence2: Addenbrookes Hospital. The contact number for the paediatric intensive care unit is 01223217715. Sentence3: Can I get the postcode as well? Sentence4: Where's the closest hospital with a paediatric intensive care unit? Sentence5: You are welcome! Have a great day! Sentence6: It looks like the Post Code is CB20QQ. Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I am sorry there are no tables available,can I help you find another place to eat? Sentence2: Yes there is availability. I made a reservation for Thursday at 13:30 for 2. The reference number is CBZ1WPRF . Is there anything else I can help you with? Sentence3: Could you help me find an expensive asian oriental restaurant? Sentence4: I need a different restaurant in the same area and price range please. Sentence5: Have a great day! Thank you for using our service Sentence6: I could try Little Seoul, which is Korean, or possibly HK Fusion Chinese. If you want. Would you like me to? Sentence7: Does the HK Fusion Chinese restaurant have availability on Thursday at 13:30? Sentence8: There are two restaurants. One located in the North area and Centre area. Which one would you prefer? Sentence9: Let's go with the centre. I need a reservation for 2 at 13:30 on Thursday. Sentence10: That is all, thanks, bye. Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:

Answer: (B) System