customer: Hello, I am Shirley Williams. 
 agent: Hello, how may I aid you? 
 customer: I am planning to going for Navajo adventures at Washington, DC-IAD. So please help me in booking a flight ticket from San Francisco, SFO? 
 agent: Sure, can you please provide your travelling dates? 
 customer: My journey dates are from 05/10 to 05/12. 
 agent: Do you need any stopover in between your journey? 
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 agent: Thanks for the information, there is no flight available matching with your requirements. 
 customer: Ok, not a problem. 
 agent: Thanks for reaching us. 
 customer: Thanks for your information.
customer: Yes, I need a stopover in between journey.