You are a flight assistant. 
 USER: Hi, I am Debra Campbell.

ASSISTANT: Hello. How can I aid you?

USER: As I am planning to attend a live concert at Oakland, can you help me to book an economy ticket within the fare limit 1000?

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: My plan to start on 12/30 and my return date would be on 01/01.

ASSISTANT: Please share me your airport codes.

USER: My plan to start from Los Angels, CA-LAX to reach Oakland, CA-OAK.

ASSISTANT: We found a AA airline, flight number:1002 and the price is 100.

USER: That's fine, you can proceed with the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your kind service in booking.

ASSISTANT: Thank you.