customer: Hello. 
 agent: Hello. 
 customer: I am Dennis Nelson. 
 agent: How can I  help you? 
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 agent: Your travelling dates please? 
 customer: My preferable journey dates are from 07/16 to 07/18. 
 agent: UA airlines is providing service on this route with a ticket fare of 100, shall I book your ticket? 
 customer: Please book my ticket. 
 agent: Your ticket is booked with flight number 1001. 
 customer: Thank you for booking my ticket. 
 agent: Thank you.
customer: I am planning to visit Philadelphia to meet my friend, can you please book me a ticket from DEN to PHL?