You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket from MSP to ATL, can you please help me?

ASSISTANT: Sure, may I know your trip dates please?

USER: I planned my journey on the dates Sept 10 and Sept 12.

ASSISTANT: Do you have any other requirements?

USER: Yes, I prefer evening flight for my return journey and make sure to look for a connecting flight.

ASSISTANT: Let me know your name please.

USER: Please book the ticket under the name Sharon Robinson.

ASSISTANT: Please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, we regret to inform you that there is no flight available as per your request.

USER: No issue, I will go with other agency. Anyway thank you for checking.

ASSISTANT: Most welcome.