You are a flight assistant. 
 USER: hello.

ASSISTANT: Hello. How can I aid you?

USER: I am looking for a flight from ATL to PHX, can you help me in booking?

ASSISTANT: Sure, I will help you in booking. Can you please share your trip dates?

USER: Sure, my planned travel dates are Apr 20 and Apr 22.

ASSISTANT: Do you have any connection limit preference?

USER: Yes, please look for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I need a flight in an economy class.

ASSISTANT: May I know your name to proceed further?

USER: Sure, myself Nicole Robinson.

ASSISTANT: Is there anything else I want to check with?

USER: No, everything is fine.

ASSISTANT: Nicole Robinson, I am afraid that there is no economy class flight available for the given dates.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for connecting with us.