customer: Hello, David Carter here. 
 agent: Hello. How can I aid you? 
 customer: I planned to attend for a seminar in DTW, can you help me to book a flight ticket from ORD? 
 agent: Please let me know your travelling dates. 
 customer: I would like to travel on 11/21 and 11/23. 
 agent: Please wait for a minute. 
 customer: Sure. 
 agent: Thanks for being patient. We found a Frontier airline.flight number:1016 and the price is 100. 
 customer: Ok, please confirm my booking. 
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 customer: Thank you for your assistance.
agent: Your flight ticket has been confirmed. Thank you for opting us.