You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you for today?

USER: I am Samantha Turner. Can you book a flight ticket for me from ATL to IAH?

ASSISTANT: Sure, I will help you with that. Can you please provide your planned dates of journey?

USER: I have planned to reach on 12/08 and back on 12/10.

ASSISTANT: Sorry Turner, there is no flights to your destination point.

USER: Ok, that's fine, thanks for your search.

ASSISTANT: Ok, most welcome.