Task: Speaker Identification
Input (English): Sentence1: What day did you want to check in? Sentence2: Yes. There will be six of us staying for two nights. Sentence3: There are many guesthouses that meet your criteria. Do you have a pricerange in mind? Sentence4: Thank you as well, let us know if you need help with anything else. Sentence5: I am looking for a place to stay. The hotel should be in the type of guesthouse and doesn't need to include internet Sentence6: I was able to book the Bridge Guest House for 6 people starting Tuesday for 2 nights. Is there anything else I can help you with? Sentence7: Yes the bridge guest house has free wifi. Can I book it for you? Sentence8: I have located 15 guesthouse types in the moderate price range. Do you have a preference for a particular area of town? Sentence9: I don't care about that. Sentence10: We have two in the south, a 4 star and a 3 star. Do you have a preference? Sentence11: I'm looking for something that would be in the middle price point. Sentence12: Does it have free wifi? Sentence13: We are actually checking in starting on Tuesday. Sentence14: Nope, that's all I need for today. Thank you! Sentence15: Maybe the south? Sentence16: Of course. Reference number COIMDB7B . Can I help with anything else today? Sentence17: How about the bridge guest house? Sentence18: Yes, can i have a reference number please? Question: Who has spoken the sentence 4? (A) User (B) System
Output (English): Answer: (A) User