You are a flight assistant. 
 USER: Hello, I am Donald Green.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to visiting my American friend, on his Marriage anniversary. So please book a flight ticket.

ASSISTANT: Sure, Could you please provide your journey details?

USER: I am travelling from IL - ORD to NY - LGA. The dates 06/17 to 06/19. With price 1000 and one connection. Sorry, the price limit is 5000.

ASSISTANT: We found a matching flight for you. Flight number:1003 with Hawaiian airlines and price is 200. Shall I proceed for booking?

USER: Yes, Please.

ASSISTANT: OK, your ticket has been confirmed. Have a safe journey.