You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Melissa Rodriguez. Can you please help me with booking a flight ticket from ATL to MSP?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I would like to take off on 11/28 and return on 11/30.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: That's ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information.

ASSISTANT: Thank you for opting us.