You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight from Chicago, can you find me a flight to Seattle?

ASSISTANT: Sure, may I know your airport codes?

USER: My source point is ORD and my destination is SEA.

ASSISTANT: Can you please share your travel dates?

USER: I will fly on Apr 11 and return on Apr 13.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is Angela White.

ASSISTANT: We found a Spirit airline, flight number: 1020, price: 100 with one connection.

USER: Please proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for helping me.

ASSISTANT: Thank you, have a good day.