You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Brian Phillips want to attend a workshop at Detroit, can you book a ticket with price under 500?

ASSISTANT: Phillips, I will help you with it. May I know the travel dates you want me to book the flight?

USER: Sure, my travelling dates are 01/25 and 01/27.

ASSISTANT: Sure Phillips, may I know your journey airport codes?

USER: Yes, I want to fly from ATL to DTW.

ASSISTANT: Yes Phillips, according to your intents there is a flight available with 0 connection limit and airlines is Delta. Do you want me to book?

USER: Can you check for the flight with 1 connection?

ASSISTANT: Sure Phillips, please wait while I check.

USER: Ok.

ASSISTANT: Sorry Phillips according to the records there is no flight with 1 connection limit.

USER: That's ok, thank you.

ASSISTANT: Thank you availing our service.