You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I want to celebrate my Birthday with my parents, so I would like to book a flight ticket to Chicago. Can you help me to book a ticket on 04/02?

ASSISTANT: Sure, may I know your source and destination codes?

USER: My source is New York, NY - LGA. And destination code is IL - ORD.

ASSISTANT: Please share your return date.

USER: Ok, I would like to return on 04/04.

ASSISTANT: Can you please provide me your price limit?

USER: Sure, my price limit is 1000.

ASSISTANT: May I know your good name?

USER: My name is Jessica Brown.

ASSISTANT: Thanks for providing your good name. We are glad to say that, we found an airline: AA, flight number: 1013 with a single connection and price is 100. Shall I proceed to booking?

USER: It's perfect, you can proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thanks for choosing us.