You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to visit Cloud Gate in Chicago, can you please help me for booking the flight ticket?

ASSISTANT: Sure, can I know the take off and landing airport codes please?

USER: The corresponding airport codes are from CO-DEN to IL-ORD.

ASSISTANT: Could you please provide the dates of journey?

USER: The journey dates are 08/23 to 08/25.

ASSISTANT: Ok, wait a moment please.

USER: Sure, make sure that the price should not be more than 200.

ASSISTANT: There is a flight with price 200 in JetBlue airline, can I proceed?

USER: Yes, proceed with my booking on the name of Donna Clark.

ASSISTANT: On whose name I should book the ticket?

USER: Please book the ticket on the name of Donna Clark.

ASSISTANT: Donna, your ticket has been booked with flight number 1013.

USER: Thank you for your help.

ASSISTANT: You are welcome.