You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What can I do for you today?

USER: I am Steven Baker. I would like to visit Alcatraz Island at San Francisco, please book a flight ticket from LAX to SFO.

ASSISTANT: Sure, can you tell me your journey dates?

USER: I will go on 05/30 and return on 06/01.

ASSISTANT: Flight number 1002 of Spirit airline is available for you, would you like to travel with this flight?

USER: Sure, please proceed.

ASSISTANT: Alright, your ticket is confirmed successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.