You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: Please book a flight ticket to ATL from MSP to attend for a meeting.

ASSISTANT: Sure, can I have your  travel  dates please?

USER: My planned dates are on June 03 and 05.

ASSISTANT: Ok,  please let me know your preferable timings of your  journey.

USER: I am fine with any timings.

ASSISTANT: Do you  have any other specifications?

USER: No.

ASSISTANT: Can I have your good name please?

USER: Alexander Anderson here.

ASSISTANT: Sorry to inform you that no flight is available to you on your planned dates.

USER: Ok, thank you.

ASSISTANT: Thank you for choosing us, have a good day.