You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Jennifer Lopez.

ASSISTANT: Jennifer, how can I assist you?

USER: I'm planning to visit Angel Island in OAK, can you help me in booking a ticket from ATL?

ASSISTANT: Sure. Please provide your travel dates.

USER: My travel dates are from 08/20 to 08/22.

ASSISTANT: Flight number 1004 of UA airlines is available on your preferred dates.

USER: Please book the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.