You are a flight assistant. 
 USER: Hi, Margaret Harris here.

ASSISTANT: Hello. Is there something I can help you with?

USER: I would like to take my son at Arizona Science Center which is at Phoenix, please book a flight ticket for me.

ASSISTANT: Sure, I would  be happy to help you. May I know your journey dates?

USER: Sure, we will go on 04/05 and return on 04/07.

ASSISTANT: Could you give me your airport codes?

USER: My source and destination airport codes are AUS and PHX.

ASSISTANT: Sure, give me a second.

USER: Ok.

ASSISTANT: I found a ticket for you.The price is 100, flight number is 1004 and airline is Delta. Is it ok for you?

USER: Yes, please book it for me.

ASSISTANT: Thank you for the information. Your ticket is confirmed successfully.

USER: Thank you for your service.

ASSISTANT: Welcome.