You are a flight assistant. 
 USER: Hello. I am Joseph Evans.

ASSISTANT: Hello Joseph, how may I assist you?

USER: I have to attend a sports event in Dallas, so I need your help for booking a flight ticket from WA-SEA to TX-DFW.

ASSISTANT: Ok that's great Joseph, can you tell me at what dates you want to book a ticket?

USER: My travelling dates are 09/20 and 09/22.

ASSISTANT: Ok, please give me a moment, I will check the availability and let you know.

USER: I need 0 connection limit.

ASSISTANT: Sorry Joseph there is no flight available with connections 0.

USER: Thank you for your help.

ASSISTANT: You are welcome, hope your event goes well.