You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Please help me to book a flight ticket from LGA to MSP.

ASSISTANT: Sure, let me know your travel dates please?

USER: June, 11 and June, 13 are my travel dates.

ASSISTANT: May I know your connection limit?

USER: I would prefer single connection.

ASSISTANT: Do you need any other preference?

USER: I need to return at afternoon time.

ASSISTANT: Can I know your name please?

USER: Shirley Adams here.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for contacting us.