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

ASSISTANT: Hello. How may I aid you at this minute?

USER: I need a direct flight, could you please help me with booking a flight ticket?

ASSISTANT: Sure, I am happy to help you with that. Can I know your travelling dates?

USER: My travelling dates are June 6 and June 8.

ASSISTANT: Do you have any other specifications?

USER: I want to return in the evening.

ASSISTANT: May I know your airport codes?

USER: My airport codes are DEN and MSP.

ASSISTANT: Ok, wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there are no flight's available based on your connection limit.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for approaching us.