You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Could you please book a ticket to New York on 08/25 and return back on 08/27?

ASSISTANT: Sure, may I know your airport codes?

USER: I am heading to New York, LGA from Chicago, ORD.

ASSISTANT: Can you please share me your name?

USER: My name is Christopher Anderson.

ASSISTANT: Christopher Anderson, we found a flight on your details with airline AA, flight number: 1025. Shall I book this ticket?

USER: Please book my ticket with this flight.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your quick response.

ASSISTANT: Thank you.