You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Charles Phillips. I would like to book a ticket to Austin, TX-AUS on 07/10 to attend my friend's marriage.

ASSISTANT: OK, Can you provide me your source airport code?

USER: I want to fly from PHL.

ASSISTANT: May I know your return date?

USER: I would like to catch a return flight on 07/12.

ASSISTANT: We found a flight with your requirement airline is Hawaiian with flight number 1020 and price is 100. Can I proceed with booking?

USER: Ok, you may proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your kind help.

ASSISTANT: Thanks for reaching us, have  a good day.