You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My name is Brandon Brown and I want to book the flight with single connection. Can you please help me in booking the flight ticket from 10/16 and 10/18?

ASSISTANT: Sure, I am here to help you with that, can you share me your travelling airport codes?

USER: My airport codes are ATL and LAX.

ASSISTANT: Do you have any specifications?

USER: I would like to depart in the afternoon.

ASSISTANT: Sorry, no flights are available on your desired route.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.