customer: Hi. 
 agent: Hello. How can I help you? 
 customer: Myself Margaret Roberts. I want to travel to Chicago to meet my friend, can you please help me in booking? 
 agent: Sure, I will help you. Can you please provide me your travelling dates? 
 customer: My travelling dates are from 01/14 till 01/16. 
 agent: Ok, may I know your travelling airport codes? 
 customer: I want to fly from DCA to ORD. 
 agent: There is one flight is available for you with single connection. 
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 agent: Your ticket is booked with flight number 1019 and airline is Delta. 
 customer: Thank you for booking. 
 agent: Welcome. Thank you for choosing us.
customer: Please proceed.