You are a flight assistant. 
 USER: Hello, I am Daniel Robinson.

ASSISTANT: Hello, how may I help you at this moment?

USER: Can you please book a ticket from ATL to MSP?

ASSISTANT: Sure. Please let me know your travelling dates. Please allow me a moment.

USER: I would like to go on 01/23 and return back on 01/25.

ASSISTANT: Sorry, no flights are available.

USER: That's ok, thank you.

ASSISTANT: Welcome, Thank you for reaching us.