You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Could you please book me a flight ticket in a flight that departs in the afternoon?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I will start on Dec 11 and return on Dec 13.

ASSISTANT: May I know your source and destination codes?

USER: I need to reach IAH to attend a party meeting and will be leaving from JFK.

ASSISTANT: Is there any class preference for you?

USER: I am fine with any class.

ASSISTANT: Do you have any other specifications?

USER: I need 1 lay by within my route.

ASSISTANT: Your good name please.

USER: I am Christopher Young.

ASSISTANT: We found an airline: American Airlines, flight number: 1025 and price is 100 with one connection.

USER: Fine, please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for your support.

ASSISTANT: Thank you for reaching us.