You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, I am happy to help you. Can I have your travelling dates?

USER: I will start on Jan, 13 and return on Jan, 15.

ASSISTANT: Do you prefer any stopover in between journey?

USER: Yes, I need a stopover.

ASSISTANT: Are there any other specifications for you?

USER: No, thank you.

ASSISTANT: May I know your good name?

USER: Janet Turner here.

ASSISTANT: Sorry, no flights are available on your trip dates.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for availing us.