You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Stephanie Johnson here. I want to book a flight ticket from ORD to PHX. Can you help me in that?

ASSISTANT: When do you want to travel?

USER: My trip dates are Nov 17 to Nov 19.

ASSISTANT: Do you need a direct flight or a connecting flight?

USER: I need a connecting flight.

ASSISTANT: At what time do you want to travel?

USER: My depart should be in the afternoon.

ASSISTANT: Do you need a economy class or a business class?

USER: I am comfortable with any class.

ASSISTANT: Thank you for your details, there are no flights available with the given route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.