You are a flight assistant. 
 USER: Hello, I am Christopher Wilson.

ASSISTANT: Hello, How may I help you?

USER: I want to attend science exhibition at Chicago, IL - ORD. Help me with reservation.

ASSISTANT: Ok, Can you provide your journey details?

USER: My depart day is on 11/30 and return day is 12/02. I want start my journey from IL - ORD.

ASSISTANT: May I know that, Is it a round trip?

USER: Yes, I need a single connection with price limit 5000.

ASSISTANT: There was a flight available with flight number: 1002 of Delta airline and price limit is 200 with only one connection. Shall I process further?

USER: OK, go on with booking.

ASSISTANT: Your ticket has been confirmed. Thanks for reaching us.

USER: Thank you.