You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you book my ticket from ORD to MSP?

ASSISTANT: Sure, can you please tell your travelling dates?

USER: My travelling dates are from 03/15 to 03/17.

ASSISTANT: Can you please tell your name?

USER: Myself Joseph Jackson.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: That's fine. Thank you for information.

ASSISTANT: Thank you and have a nice day.