You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I'm Charles Taylor. I need to attend a freshers party in my college, could you help me in booking a ticket?

ASSISTANT: Sure, please let me know the travelling details?

USER: My airport codes are MSP and ALT. Sorry, my destination code is ATL.

ASSISTANT: Ok, may I know the dates of travel?

USER: My planning dates are from 02/29 to 03/02.

ASSISTANT: Sorry for the inconvenience, there are no flights available on your requested dates.

USER: It's fine. Thank you for your help.

ASSISTANT: Thank you for reaching us.Have a good day.

USER: Welcome.