You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is Elizabeth Brown, I want to book flight from Austin to Charlotte airport to meet my sister. Can you book a connecting flight for me?

ASSISTANT: Sure, I am here to help you. May I know when are you willing to travel?

USER: I will travel on 12/12 and return on 12/14.

ASSISTANT: Please share your airport codes.

USER: I will fly from TX-AUS to NC-CLT.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We have a flight from UA airline 1009 and the price is 100. Shall I proceed?

USER: Please proceed with booking.

ASSISTANT: Economy call ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.