You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Gary Perez here. I heard that Georgia Aquarium is one of the best place in the city. So, I am planning to visit that place which is in ATL.

ASSISTANT: Sure, when you are planning to travel?

USER: My planning dates are from 05/11 to 05/13.

ASSISTANT: Ok, may I know your source codes?

USER: My source airport code is OAK.

ASSISTANT: Yes Gary, wait for a minute.

USER: I need a flight with 0 connection.

ASSISTANT: Sorry Gary, no flight's found on your connections.

USER: It's fine. Anyway, thank you for your help.

ASSISTANT: Thank you for reaching us. Have a nice day.

USER: You are welcome.