You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Carolyn Wilson this side, I am planning this outing at New York, can you book a ticket for me?

ASSISTANT: Sure, may I know the airport codes please?

USER: Search the flights from IAD to JFK.

ASSISTANT: Ok, may I know the travel dates please?

USER: Specifically look for the flights on 05/15 and 05/17.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: My preferable fare is within 5000.

ASSISTANT: I found a flight for you with Spirit airline and it has a single connection. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with 1024 flight number.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us, have a safe flight.

USER: Welcome.