customer: Hi. 
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 customer: I would like to meet my friend on his birthday, could you please help me to book my flight ticket from OAK to ORD? 
 agent: Sure, May I know the travelling dates? 
 customer: Sure, I will depart on June 16th and return back on June 18th. 
 agent: Do you have any connection limit? 
 customer: Yes, I prefer for a single connection flight. 
 agent: Is there any other requirements? 
 customer: I would like to return back in the morning. 
 agent: May I know your name? 
 customer: My name is Richard Miller. 
 agent: Please wait a minute. 
 customer: Sure. 
 agent: Sorry, No flights found with your chosen dates. 
 customer: Oh! No problem, thank you for checking. 
 agent: Thank you for opting us.
agent: Hello, How can I assist you?