customer: Hello. 
 agent: Hello. 
 customer: I am Charles Evans. 
 agent: How may I guide you? 
 customer: Can you please help me in booking my flight ticket from ORD to DTW? 
 agent: Sure, can I have your journey dates please? 
 customer: My travelling dates are 12/23 and 12/25. 
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 customer: Ok, sure. 
 agent: Thank you for your waiting, I found a flight for you in JetBlue airlines with fare 300. Can I proceed? 
 customer: Ok, please proceed. 
 agent: Ok, your booking is confirmed with flight number 1005. 
 customer: Ok, thank you. 
 agent: Thank you for choosing us.
agent: Please wait a moment, I will check the availability of flights.