customer: Hello. 
 agent: Hello. How may I assist you? 
 customer: Please help me to book a flight ticket from OAK to PHX. 
 agent: Sure, I am gleeful to help you. May I know on what dates you are willing to travel? 
 customer: My trip dates are from July, 08 to July, 10. 
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 customer: I am James Clark. 
 agent: Do you have any connection limit? 
 customer: I need a direct flight. 
 agent: Is there any preferences? 
 customer: I prefer to depart in the evening. 
 agent: Sorry, there are no flights found on your journey dates. 
 customer: Thank you for your information. 
 agent: Thank you for approaching us.
agent: May I know your name?