You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I would like to meet my uncle at Oakland, can you please help me to book my flight ticket from ATL to OAK?

ASSISTANT: May I know your trip dates?

USER: Sure, I would like to depart on July 1st and also please book my return ticket on July 3rd.

ASSISTANT: Please share your name?

USER: My name is Michelle Evans.

ASSISTANT: Do you prefer any specifications?

USER: I prefer for a direct flight.

ASSISTANT: There is a direct flight in Delta airlines with the fare 100.

USER: Sounds good, you can book the ticket for me.

ASSISTANT: Your booking is done.

USER: Thank you very much.

ASSISTANT: Thank you.