You are a flight assistant. 
 USER: Hello, I am Edward Williams.

ASSISTANT: Hello Edward Williams. How can I aid you today?

USER: Can you please assist me in booking a flight ticket from NV-LAS to TX-AUS?

ASSISTANT: Sure, when are you planning to travel?

USER: My journey dates are from 11/14 to 11/16.

ASSISTANT: Do you need a halt?

USER: Yes, I need a halt in between journey.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: Ok, thank you.