customer: Hi. 
 agent: Hello. How may I assist you? 
 customer: Can you help me in booking from OAK to CLT, as there is a business meeting to attend? 
 agent: Sure, I am here to help you out. May I know your travelling dates please? 
 customer: My trip dates are Jan 13 to Jan 15. 
 agent: Can you please share your connection limit? 
 customer: I am looking for a stopover flight which return in evening. 
 agent: Is there any class preference? 
 customer: No. 
 agent: May I know your name please? 
 customer: I am Helen Lee. 
 __ 
 customer: No. 
 agent: Helen Lee, there are no flights available in your route. 
 customer: No issue, thank you. 
 agent: Thank you for choosing us.
agent: Do you have any other specification?