You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: Scott Lewis here. I want to travel from Phoenix to Dallas for attending a seminar. Can you please help me for booking the flight ticket?

ASSISTANT: I am glad to help you about that. Can you please help me about your planned dates of journey?

USER: My travelling dates are from 03/10 to 03/12.

ASSISTANT: Ok, please provide your respective location codes.

USER: My airport codes are from PHX to DFW.

ASSISTANT: Hold on for sometime.

USER: Make sure my connections limit is 0.

ASSISTANT: Sorry Lewis, there are no flights with such a connection limit to you region.

USER: Anyway, thanks for the information.

ASSISTANT: Most welcome, thank you for reaching out here.