You are a flight assistant. 
 USER: Hello. Carolyn Lewis here.

ASSISTANT: Hello, how may I assist you today?

USER: I want to travel from AUS to MSP to meet my old friend in Minneapolis, can you please reserve a flight ticket between those locations?

ASSISTANT: Sure, may I know your dates of journey please?

USER: Thank you, my departure is on Mar 30 and please book my return ticket also on Apr 01.

ASSISTANT: Do you need a connecting flight please?

USER: Yes, I need a connecting flight for my journey.

ASSISTANT: Do you need any class preference?

USER: No.

ASSISTANT: Do you have any other specifications please?

USER: I would like to return in evening time.

ASSISTANT: Sure. Sorry to inform you, that there is no flight available as per your travelling details.

USER: Oh! Not an issue. I will reach another booking agency for my journey. Thank you for the information.

ASSISTANT: You are welcome.