customer: Hello, I am Lisa harris. 
 agent: Hello, How may I assist you? 
 customer: I want to attend a cultural exhibition in MA - BOS on 09/15 from IL - ORD and return on 09/17. Can you please help me out in booking a ticket with price limit of 5000? 
 agent: Sure. Give me some moment to check the availability of flight? 
 customer: OK. 
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 customer: Can I know the price of the flight? 
 agent: Sure. The price is 100. Shall I proceed for booking? 
 customer: OK, you can proceed for booking. 
 agent: OK. Your ticket has been booked successfully. 
 customer: Thanks for your response. 
 agent: Thank you for choosing us!.
agent: Thank you for being patience. There is a flight available based on your availability. Frontier air lines,flight number 1025.