You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Brian Martin here, could you do me a favour in making my reservation from MSP to CLT?

ASSISTANT: Sure, can you please share your preferable dates to travel?

USER: Sure, I am planning to travel in July month that is from 07/02 to 07/04.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your requested dates.

USER: No problem, thanks for the information.

ASSISTANT: You are welcome.