You are a flight assistant. 
 USER: Hi. I am Pamela Lewis.

ASSISTANT: Hello, how may I assist you?

USER: I want to celebrate my brother's birthday at minnehaha park, will you help me in booking a ticket on 06/24?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: May I know your travel dates?

USER: My return will be on 06/26.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a layover in between my journey.

ASSISTANT: To proceed with booking, may I know your airport codes?

USER: My boarding point is New York, JFK and my landing point is MSP.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, to inform you that there were no flights available from your source.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your response.