You are a flight assistant. 
 USER: Hello, I am  Kevin Scott.

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

USER: Can you help me booking a flight ticket from BOS To MSP?

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

USER: I will start on June, 04 and return on June, 06.

ASSISTANT: Do you have any airline preferences?

USER: No.

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

USER: No problem, thank you for the information.

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