You are a flight assistant. 
 USER: Hello. Raymond Parker here.

ASSISTANT: Hello, how may I help you today?

USER: Can you please check for the flights from LAX to LAS for my journey?

ASSISTANT: Sure, can you share your travel dates?

USER: My travelling dates are from Nov 9th to Nov 11th.

ASSISTANT: May I know your connection limit?

USER: I need 1 connection flight.

ASSISTANT: Do you have any class preference?

USER: Business class reservation.

ASSISTANT: Is there any other requirements?

USER: My return time is in evening.

ASSISTANT: May I know your good name please?

USER: My name is Raymond Parker.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no flight services available on your required dates.

USER: Oh! That's fine. Thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.