You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Could you help me to book a connecting flight?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: My preferred airport codes are DFW and OAK.

ASSISTANT: Let me know your travelling dates.

USER: My travelling dates are Oct 30 and Nov 01.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is Paul Lopez.

ASSISTANT: We found a Spirit airline, flight number: 1008, price: 100 with one connection.

USER: Proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.