You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you now?

USER: I want to book a flight ticket with the price under 500, please help me with it.

ASSISTANT: Sure, we are here to help you. Please share your travel areas?

USER: My travelling dates are from 11/27 to 11/29.

ASSISTANT: Do you have any halt in your journey?

USER: I need a stop over in between my journey.

ASSISTANT: Can I have your journey airport codes?

USER: Its from PHX to MSP.

ASSISTANT: Sorry to inform you that no flights available on given dates.

USER: Fine, thank you.

ASSISTANT: May I know your name please?

USER: I am Stephen Lewis.

ASSISTANT: Thank you, have a good day.

USER: Thank you.