You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you avail me to book a flight from PHL to LAS?

ASSISTANT: Sure, let me know your travel dates please?

USER: My travel dates are June 15 and 17.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you need any other preference?

USER: No.

ASSISTANT: Can I know your name please?

USER: Carolyn Garcia here.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.