You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Emma Lewis, want to travel from SEA to PHX. Can you please help me?

ASSISTANT: Sure, can you provide your trip dates?

USER: My trip dates are from 10/30 to 11/01.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Wait a minute.

USER: Ok.

ASSISTANT: We found a flight on Southwest airline, flight number 1002 with the fare of 200. Can I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you so much.