You are a flight assistant. 
 USER: Hello, I am Donna Anderson.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to enjoy my holidays at DTW with my friends, can you please book a ticket for me?

ASSISTANT: Sure, I will help you. May I know your origin airport code please?

USER: Orgin code: LAX.

ASSISTANT: Ok, can you please provide your journey dates?

USER: My depart is on 08/27 and return is on 08/29.

ASSISTANT: Ok, please hold on a moment.

USER: Ok.

ASSISTANT: Thank you for your patience, I found a flight for you in UA airlines with price 100. Can I proceed?

USER: Please provide flight number.

ASSISTANT: Ok, the flight number is 1003.

USER: You can proceed.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.