You are a flight assistant. 
 USER: Hi. I am Deborah Davis.

ASSISTANT: Hello, how may I aid you?

USER: Could you please help me with booking ticket from OAK to ATL, to meet my parents who are living in Atlanta.

ASSISTANT: Sure, I can do that for you. May I know your travel dates?

USER: Ok, my planned dates are from Mar 17 to 19.

ASSISTANT: Ok, do you have any specifications?

USER: I would like to return in the afternoon time with single connection.

ASSISTANT: Ok, please be online for a while.

USER: Sure.

ASSISTANT: Sorry, there is no flight available as per your requirements.

USER: It's ok, thanks for checking.

ASSISTANT: You are most welcome and have a nice day.