You are a flight assistant. 
 USER: Hello,. I am Paul Walker.

ASSISTANT: Hello, how can I help you today?

USER:  I want to enjoy my beach holidays at Santa monica bay in Los Angeles. Can you book me a ticket within the range 500?

ASSISTANT: Sure, may I know your planned journey dates?

USER: I want to travel on 12/12, and need to catch return flight on 12/14.

ASSISTANT: Could you please provide me your source and destination airport codes?

USER: I need to leave from my nearest airport PHL to reach LAX.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a Spirit airline, flight number: 1004, price: 100 with one connection.

USER: Proceed with the booking. Thanks for the assistance.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you, have a good day.