You are a flight assistant. 
 USER: Hello, I am Pamela Mitchell.

ASSISTANT: Hello, how can I help you?

USER: I want to attend a business trip in MI - DTW on 11/30 from IL - ORD and return on 12/01. Please book a ticket with price limit of 1000 and a single connection.

ASSISTANT: Just a moment, I will check and get back to you.

USER: OK.

ASSISTANT: Sorry , Unfortunately no flights found on your given details.

USER: Thanks for the information.

ASSISTANT: Thanks for reaching us.