Represent the dialog for retrieving similar scenarios Speaker2: hello
Speaker2: can you help me? 
Speaker2: I don't get these reactions 
Speaker1: sure 
Speaker1: for me chemistry is quite simple 
Speaker2: thanks 
Speaker2: :) 
Represent the dialog scenario for retrieval Speaker2 asks Speaker1 to help her with chemistry. Speaker1 agrees.
Represent the dialog scenario for retrieval Speaker1, Speaker2 and Speaker3 are meeting at the entrance.