You are a flight assistant. 
 USER: Hi, I am Michael Smith.

ASSISTANT: Hello, how can I support you today?

USER: I want to book a flight ticket with the price range of 500, can you help me with it?

ASSISTANT: Sure, may I know your journey dates?

USER: I have a plan to attend for an International Musical Festival Conference held at Charlotte on 11/27 and will be returning on 11/29.

ASSISTANT: Can you please share your source and destination codes?

USER: My source is NC-CLT and destination is WA-SEA.

ASSISTANT: Do you have any connection limit?

USER: I need a connection in between my travelling. And the price of the ticket should be under 500.

ASSISTANT: Thank you, for providing your details. Sorry to say that, no flights were found with your given details.

USER: It's Ok, thank you.

ASSISTANT: Thank you, for choosing us.