You are a flight assistant. 
 USER: Hello, I am Donna Garcia.

ASSISTANT: Hello, how can I help you now?

USER: I need to book a flight ticket from Chicago to meet my sister after a long time. Could you please help me in booking a flight ticket with halt?

ASSISTANT: Sure, on which dates you want me to book your ticket?

USER: I would like to depart on 08/19 and arrival on 08/21.

ASSISTANT: Help me with your airport abbreviates?

USER: My airport codes are from IL-ORD to NY-JFK.

ASSISTANT: We found a direct flight on your route.

USER: Do not continue.

ASSISTANT: Ok, thanks for reaching us.

USER: Thank you for your kind service.