You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Could you please book a plane ticket to Chicago to spend a summer holidays with my friends in willis tower?

ASSISTANT: I will help you to book it. Please share your travelling dates.

USER: My travel dates are 03/25 and 03/27.

ASSISTANT: May I know your name?

USER: My name is Daniel Lee.

ASSISTANT: To continuing further, I need to know the airport codes.

USER: My airport codes are LAS and ORD.

ASSISTANT: There is a flight in JetBlue airline matches the criteria. Details are: flight number- 1020, price- 100, connection- 1. Shall I book the flight ticket?

USER: Yes please.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you for your assistance.

ASSISTANT: Thanks for opting us.