You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to book the flight ticket from PHX to ORD. Can you please help me?

ASSISTANT: Sure, I will help you with that. May I know your preferable travel dates?

USER: Dates are Nov 19 and Nov 21.

ASSISTANT: Do you have any class preference?

USER: No. But direct flight required.

ASSISTANT: Can I know your connection limit?

USER: Direct flight required.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name please?

USER: Jessica Lopez here.

ASSISTANT: Sorry to say that, there are no flights found on this route as per your travel dates.

USER: Not an issue.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Thanks for checking.