You are a flight assistant. 
 USER: Hello, I am Margaret Edwards.

ASSISTANT: Hello, how may I assist you?

USER: I am planning for an outing at New York. Can you help me to book a ticket? Search for the flights on 01/02 and 01/04.

ASSISTANT: Sure, may I know your travel dates please? Ok. May I know your airport codes please?

USER: I am planning to travel from SFO to JFK.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: See for the flights whose price is under 200.

ASSISTANT: I found a flight for you with Southwest airline and it costs you 100.

USER: Please proceed.

ASSISTANT: Your ticket has been booked with 1027 flight number.

USER: Thank you for booking.

ASSISTANT: Welcome.

USER: You are welcome.