You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Ryan Anderson .

ASSISTANT: Ryan, how may I aid you today?

USER: I'm planning to visit Jack London Square located in OAK, can you please book the ticket on 05/31?

ASSISTANT: Sure, can I know the return details?

USER: My return day will be on 06/02.

ASSISTANT: Please provide the source airport code?

USER: I would like to start my trip from SFO.

ASSISTANT: There is a flight available with Frontier airlines flight 1016, can I proceed?

USER: Yes, please proceed with booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking a flight ticket.

ASSISTANT: Thank you, have a good day.