You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Kevin Lee. I have planned to travel to Oakland to visit Angel Island, can you please help me in searching a flight for me from Atlanta?

ASSISTANT: Sure Lee, I am here to help you. Can you please share me your airport codes?

USER: Thank you for accepting my request. My preferred airport codes are ATL and OAK.

ASSISTANT: When you are willing to travel?

USER: Ok, I am willing to travel on the dates of 05/24 and 05/26.

ASSISTANT: Just a moment.

USER: Ok, take your time and make sure that the flight connection limit is 0.

ASSISTANT: Lee sorry to intimate, no flights are available with your requirements.

USER: Ok, is there any connecting flight in this route?

ASSISTANT: Yes.

USER: If the ticket fare is less than 500, then proceed with ticket booking.

ASSISTANT: Sure, your ticket is reserved with the flight-1021.

USER: Thank you for helping me in booking a flight ticket.

ASSISTANT: You are most welcome.