You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I want to visit Chicago.Can you please help me for booking the flight ticket?

ASSISTANT: Could you please specify your travelling details?

USER: The airport codes are from IL-ORD to MA-BOS and journey dates are from 09/27 to 09/29.

ASSISTANT: I find a flight with connection 1 and airline UA.

USER: May I know the price?

ASSISTANT: price is 100.

USER: Ok, please book the ticket.

ASSISTANT: Ok, may I know your name please?

USER: Sure, my name is Brandon Robinson.

ASSISTANT: Brandon, your ticket has booked.

USER: Thank you.

ASSISTANT: Thank you for choosing our service. Have a safe journey.