You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: This is Paul Smith, I want to travel from SEA. Can you help me to book a flight ticket in business class?

ASSISTANT: Sure, can I know your preferable dates?

USER: I am travelling from Sept 21 to Sept 23.

ASSISTANT: Can I know your destination airport code?

USER: My destination airport code is SEA and source airport code is LAX.

ASSISTANT: I found an economy class ticket in Hawaiian airlines with normal cost of 200 and it is a single connecting flight. Can I book your ticket?

USER: Do not proceed. Thank you for the information.

ASSISTANT: Thank you.