You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need to go The Billy Graham to bring some books from there, so can you book a flight ticket on 10/31?

ASSISTANT: Sure, may I know your airport codes please?

USER: Sure, I will take off from OAK and land on CLT.

ASSISTANT: Can you please provide me your good name?

USER: Sure, I am Kevin Anderson.

ASSISTANT: Please share me your return dates.

USER: I will return on 11/02.

ASSISTANT: Thanks for providing your details, we found a flight on your details with airline Spirit, flight number: 1020. Shall I proceed for booking?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your quick service.

ASSISTANT: Thanks for choosing us.