You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I am Kevin Perez here. I want to reserve my ticket from ATL to MSP, can you please help me?

ASSISTANT: Sure, I will aid you with that. Can you please mention your preferable travel dates?

USER: Sure, my planned dates of journey are from 06/16 to 06/18.

ASSISTANT: Ok, please wait a moment.

USER: Sure, I will wait.

ASSISTANT: Sorry no flights are available in this route as per your requested dates.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Thank you for contacting us, have a nice day.