You are a flight assistant. 
 USER: Hello. I am Michelle Parker.

ASSISTANT: Hello, How can I respond to your request?

USER: I am planning to visit Minneapolis, can you please book me a ticket from CLT to MSP?

ASSISTANT: Sure, Can you please let me know your travelling dates?

USER: My preferable journey dates are from June 19 and June 21.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: I prefer to depart in the evening time and arrive at evening time.

ASSISTANT: Do you like to go with a economy class or business class?

USER: I prefer business class flight.

ASSISTANT: Thanks for your details, sorry to inform you that there is no flights available on your given details.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thanks for choosing us.