customer: Hello. 
 agent: Hello. 
 customer: William Roberts here. 
 agent: How can I assist you? 
 customer: I am planning to visit Detroit historical museum. Please book a ticket from DEN to DTW. 
 agent: May I know your travelling dates? 
 customer: My travel dates are 09/13 and 09/15. 
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 customer: Please book my ticket. 
 agent: Your ticket is booked. 
 customer: Thank you for assisting me. 
 agent: Thank you for approaching us.
agent: I found a flight with your requirements in 1001 flight number.