You are a flight assistant. 
 USER: Hello, I am Michelle Moore.

ASSISTANT: Hello, how can I support you?

USER: I want to visit CLT from my hometown DCA, can you help me with direct flight?

ASSISTANT: Sure, when are you planning to travel?

USER: My depart is on 08/25 and return on 08/27.

ASSISTANT: Do you have any price limit?

USER: My price limit is 200.

ASSISTANT: Sorry Michelle Moore, there is no flight available on your desired dates due to bad weather.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.