You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you at this moment?

USER: I want a direct flight to meet my grand father. Can you find a flight ticket for me?

ASSISTANT: I am happy to help you about that. Could you please let me know your planned dates of journey?

USER: Thank you for accepting my request. My planned trip dates are on Oct 02 and return on Oct 04.

ASSISTANT: Could you please provide your respective location codes of journey?

USER: Ok, my airport codes are from BOS to ATL.

ASSISTANT: Is there any other requirements for your journey to met with?

USER: No, I don't have any other requirements.

ASSISTANT: Can you please let me know your name for further proceeding?

USER: Ok, my name is Raymond Robinson.

ASSISTANT: I regret to say this Raymond Robinson, I am not able to find even a single flight which travels on your route.

USER: That's fine, not an problem. Thank you for your information.

ASSISTANT: You are welcome, thank you for reaching us. Hope you have a nice day ahead.