You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help is required from our agency?

USER: I'm Michael Jackson here. I want to travel from IL-ORD to MA-BOS to visit Boston, can you please help me to book a ticket?

ASSISTANT: Sure, can I know the preferable dates please?

USER: Sure, my planning is from 12/11 to 12/13 for booking purpose.

ASSISTANT: Ok, wait a moment please.

USER: Sure. Take your own time.

ASSISTANT: I found a flight for you in Southwest airline with price 100, shall I book it?

USER: Ok, please book it.

ASSISTANT: Your ticket has been booked with flight number 1003.

USER: Thank you for your help in booking.

ASSISTANT: You are welcome, visit us again.

USER: Sure, thank you.