You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth Baker.

ASSISTANT: How can I help you?

USER: I want to go to my grandmother memorial service at SFO. Can you please help me in booking a flight from ATL?

ASSISTANT: May I know your travel dates?

USER: Sure, I want to depart on Sept 29 and intend to return on Oct 1.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a connecting flight and my depart time should be on afternoon.

ASSISTANT: Flight-1021 is available in AA airlines with single connection and the flight fare is 600. Can I proceed?

USER: Ok, please proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you.