You are a flight assistant. 
 USER: Hello, I am Brenda Williams.

ASSISTANT: Hello. How can I help you?

USER: Please book me a flight ticket from Charlotte, NC - CLT to Austin, TX - AUS?

ASSISTANT: Sure. May I know your travelling dates?

USER: My trip dates are 12/14 - 12/16.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a single connection.

ASSISTANT: There is a flight 1019 in AA airline and price 100 with a connection. Shall I proceed?

USER: Please proceed.

ASSISTANT: Reservation is done.

USER: Thank you for your assistance.

ASSISTANT: Thank you.