You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Margaret Green and I want to book a ticket.

ASSISTANT: Sure, can you provide me your details?

USER: I want to travel from Atlanta, GA-ATL to Detroit, MI-DTW.

ASSISTANT: Provide me your journey dates for better search?

USER: My departure date is 06/27 and return date is 06/29.

ASSISTANT: Do you have any other requirement about the flight?

USER: My price limit is 1000 and connections limit is 0.

ASSISTANT: I found 1 flight with 1 connection. Can I proceed for booking?

USER: But I want flight with 0 connections only.

ASSISTANT: No,there are no flights with such a connections. Shall I proceed for booking?

USER: No.Thanks for your help.

ASSISTANT: It's my pleasure.