You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Karen Hill. I have a plan to visit beer festival at Minneapolis, please book a flight ticket under price 500.

ASSISTANT: Sure, may I know your travel dates?

USER: My return date is on 01/11 and depart date on 01/09.

ASSISTANT: May I know your airport codes?

USER: My source code is CLT and Destination code is MSP.

ASSISTANT: Do you need a halt?

USER: I need a lay by.

ASSISTANT: We found a flight on your details with airline Hawaiian, flight number: 1003.

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for availing us.

ASSISTANT: Thank you.