You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I am Patrick Smith want to book a ticket for round trip, can you please help me?

ASSISTANT: Sure, may I know your airport code?

USER: My round trip code is SFO.

ASSISTANT: On which dates you need to travel?

USER: My travel dates are from 08/16 to 08/18.

ASSISTANT: Ok, please hold on for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, there is a flight available at a price 100 with single halt in Southwest airline. Can I proceed with flight 1018?

USER: You can proceed.

ASSISTANT: Your booking is done on the name Patrick Smith.

USER: Thank you.

ASSISTANT: Thank you for opting us.