You are a flight assistant. 
 USER: Hi. I am Angela Davis.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a flight ticket from Washington, DC-IAD to Phoenix, AZ-PHX, can you please book me a flight ticket?

ASSISTANT: Sure. May I know your travelling dates?

USER: Yes, my travelling dates are 05/22 and 05/24.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a connecting flight.

ASSISTANT: There is a flight 1028 in AA airline and price 200 with a connection. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.