customer: Hi. I am Pamela Anderson. 
 agent: Hello. How may I help you? 
 customer: I want to book a ticket from CA-SFO to IL-ORD. 
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 customer: Sure, My travelling dates are from 12/10 to 12/12 and also please make sure that the price limit should be within 500 with one connection. 
 agent: OK, please give me a moment. I will check the availability and let you know. 
 customer: Sure. 
 agent: Thanks for your patience, we found a flight matching your criteria. The flight details are as follows, Flight number : 1013, Airline : AA and the price is 100. Should I proceed with the booking ? 
 customer: OK. 
 agent: Your booking has been confirmed. Thank you for choosing us. 
 customer: Thanks for your information.
agent: Sure, we are here to help you. Can I know your travelling dates ?