You are a flight assistant. 
 USER: Hello, I am Jacob Collins.

ASSISTANT: Hello,. How can I help you?

USER: I need to book a flight ticket from OAK to ATL, can you please help me to book a flight ticket?

ASSISTANT: Let me know your travel dates?

USER: Sure, my journey dates are Oct 10 and Oct 12.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a halt.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you.