You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a flight ticket from SEA to LGA?

ASSISTANT: Sure, when would you like to travel?

USER: Thank you. I have planned my travel dates as June 06 and June 08.

ASSISTANT: Do you have any preferences?

USER: I would prefer business class to travel.

ASSISTANT: May I know your name please?

USER: Sure, myself Sarah Rodriguez.

ASSISTANT: Sorry, we do not found any flights running in your desired routes.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for availing us.

USER: Most welcome.