You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Debra Williams here.

ASSISTANT: Can you please tell me how may I assist you Williams?

USER: Can you book a connecting flight for me to Chicago?

ASSISTANT: Ok, may I know your travelling dates?

USER: My dates for journey are 12/19 to 12/21.

ASSISTANT: Please mention your travelling airport codes?

USER: Airport codes for my journey would be from BOS to ORD.

ASSISTANT: I found a flight ticket with 1009 flight number and connection limit is 1.

USER: Sure, you can book the flight ticket.

ASSISTANT: Ok, your ticket has been booked with fare 200.

USER: Thank you.