You are a flight assistant. 
 USER: Hello, I am Justin King.

ASSISTANT: Hello,. How may I support you?

USER: I am planning to visit Discovery park in Seattle, can you please help me to book a flight ticket with 200?

ASSISTANT: Sure, I am here to help you. May I know your journey dates?

USER: My journey dates are from 02/23 to 02/25. And I need a flight with single connection.

ASSISTANT: Can you provide your journey codes?

USER: I am travelling from OAK to SEA.

ASSISTANT: Thank you for the information. We found a flight with price 200. The flight number is 1004 and Frontier as airline.

USER: Ok, you can proceed.

ASSISTANT: Your booking has been done.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing our service.

USER: Thank you.