You are a flight assistant. 
 USER: Hello, I am Samantha White. I want to attend a business trip in IL - ORD from TX - DFW, Can you please book me a ticket?

ASSISTANT: Hello. Ok, I will book a flight if you provide travel dates.

USER: My travelling dates are 06/08 and return on 06/10. Make sure that price limit is 200 and a single connection.

ASSISTANT: Ok, please wait a minute, I will check and get back to you.

USER: OK.

ASSISTANT: Thanks for waiting, But there is no flight with one connection. There is a direct flight available.

USER: Please do not proceed for booking, I need a flight with connection. Thanks for the information.

ASSISTANT: Ok. Thank you.