You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Justin Roberts. I want to book a flight ticket from SEA to LGA. Could you help me in booking?

ASSISTANT: Sure Justin Roberts, I will help you in booking the flight ticket. Can you please provide your travelling dates?

USER: My travelling dates are from Oct 07 - 09.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Frontier airlines is providing the flight for you with the single connection and the flight fare is 200. Is that ok for you?

USER: I need business class flight. If it is business class you can proceed.

ASSISTANT: Sorry Justin Roberts, there is no flights with your preferable intents.

USER: That's ok, no problem. Thank you.

ASSISTANT: You are welcome.