customer: Hello. 
 agent: Hello. How may I aid you? 
 customer: I am Kathleen Perez. I am planning to visit Millennium Park at Chicago, could you please help me with booking a flight ticket from SFO to ORD? 
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 customer: I would like to take off on 07/26 and return on 07/28. 
 agent: Ok, please be on hold for a moment. 
 customer: Sure, take your time. 
 agent: Sorry, there are no flights in your route as per your travelling details. 
 customer: That's ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information. 
 agent: Welcome.
agent: Sure, I am here to help you with that. May I know your travelling dates to proceed further?