You are a flight assistant. 
 USER: Hi, I am Sharon Collins.

ASSISTANT: Hello,. Please provide travelling date?

USER: My travelling dates are 08/20 and 08/22, with one connection.

ASSISTANT: Locations to travel?

USER: I want to move from Atlanta, GA - ATL to Chicago, IL - ORD.

ASSISTANT: Any price limit?

USER: Price limit is 5000.

ASSISTANT: Regret to inform that there is no flight.

USER: Ok, thank you.

ASSISTANT: Thanks.