You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you aid me to book my ticket from PHX to ORD?

ASSISTANT: May I know your trip dates?

USER: My travel dates are Nov 6 and Nov 8 respectively.

ASSISTANT: Do you have any connection limit preference?

USER: I prefer for single connection.

ASSISTANT: Do you have any other specifications?

USER: I prefer for business class to travel.

ASSISTANT: Could you help me with your name please?

USER: Anna Carter here.

ASSISTANT: Sorry, there are no business class flights available for the given dates.

USER: No issue. Thank you.

ASSISTANT: Thank you for reaching us.