You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Carol Lopez.

ASSISTANT: How may I assist you Carol?

USER: I'm planning to visit Pier 39. Can you book a ticket from 11/28 to 11/30.

ASSISTANT: Ok, may I know the origin and destination airport codes?

USER: My airport codes are PHX and SFO.

ASSISTANT: Ok, please hold on for a moment. Flight 1006 is available with price 100. Shall I proceed with booking?

USER: Please book the ticket.

ASSISTANT: Ok, your ticket is booked with AA airlines. Thank you, have a safe journey.

USER: Thank you for your help.