You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: May I know on what dates would you like to travel?

USER: I am planning to fly on June 09 and 11.

ASSISTANT: Do you require any stopovers in your journey?

USER: Yes, I prefer connecting flight.

ASSISTANT: May I know your name?

USER: My name is Jonathan Jones.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: No issues, thank you for your time.

ASSISTANT: Thank you.